Breeding bettas is one of those projects that looks simple on paper until you’re watching a male tear apart a female before she’s ready to spawn. I’ve bred bettas a few times over the years and the bubble nest ritual never gets old — but you have to be prepared to intervene fast if the female isn’t receptive. The conditioning period, the divider setup, and the post-spawn fry care all matter more than people typically realize going in. Here’s everything you need to set yourself up for success.

What Are Betta Fish?

Betta fish are also known as Siamese fighting fish. These colorful tropical freshwater fish are native to Thailand where they live in shallow swamps and rice paddies.

Most of the betta fish you see for sale at the local pet store are males, although you should be able to find some female fish if you shop around.

People have been keeping betta fish for over 150 years, and careful breeding has produced the incredible variety of betta fish available today. These beautiful fish weren’t always kept for their looks, however. Male bettas were originally bred to fight.

Let’s take a look at some important Betta fish facts:

• Scientific name: Betta splendens
• Family: Osphronemidae
• Origin: Southeast Asia
• Size: 2-3 inches
• Temperament: Semi-aggressive
• Lifespan: 2-5 years

Betta Fish Care – The Basics

Before you can breed betta fish, you need to know how to care for them. There are some great in-depth articles in our blog to get you started, but here are key facts that you need to know:

Care Facts

• Minimum Tank Size: 5 gallons for long-term care
• Water temperature: 76 – 82 °F
• pH: 6.5-8
• Nitrates: < 20 ppm
• Water Flow: Low

If you don’t already have a pair of bettas, you’re going to need to set them up in their own cycled tanks. Cycling an aquarium is the process of getting the nitrogen cycle up and running and it can take over a month to achieve using the traditional fishless methods.

You can also cycle your aquarium using liquid bacteria products if you monitor the process by testing your water. A water test kit is essential anyway, so pick up a liquid or strip test kit so you can monitor the following water parameters in your tank:

• Ammonia
• Nitrite
• Nitrate
• pH

Fish Behavior

Adult bettas are aggressive fish to their own kind. Their behavior is the most difficult part of the breeding process because they can hurt or even kill each other if you are not careful. Female bettas can come and go as they please in nature, but they cannot escape in a tank.

You can expect some fighting when breeding your betta fish, it’s all part of the process. The female betta will also eat her own eggs and fry, so make sure you follow all the steps in this guide to avoid serious injuries and losses.

Are You Ready for Breeding This Type of Fish?

Breeding betta fish is an amazing hobby, and it can even help you earn some pocket money for more aquariums if you take it seriously. Nevertheless, betta breeding is not something you should jump into without careful thought and planning. Here are some important tips:

• Start by keeping adult bettas for at least a few months to learn more about their behavior and needs.
• You should have a good understanding of the nitrogen cycle, aquarium maintenance, and water testing before breeding your fish.
• Learning how to grow your own live foods like baby brine shrimp is also a good idea. This will be very important when you have loads of tiny mouths to feed.
• Even with all the experience in the world, you will still need the space and equipment to set up your breeding project. You will need three tanks to keep and breed a single pair. Make sure you have enough room in your house and your budget before getting started.
• It is possible to make a profit out of breeding betta fish, but there’s a good chance that it will never be much more than a hobby.
• Nevertheless, you will need to sell or give away the young fish once they are old enough. Make sure you will be able to find them a new home.

Once you have considered all these factors, it’s time to get started!

The Facts

So you’ve thought about all the important things in the previous section and you’re sure you want to breed your betta fish. But where do you begin? And what do you need for breeding bettas?

This section will get you started on the exciting path toward breeding your Siamese-fighting fish. Let’s take a closer look at the basic equipment that you will need.

The Breeding Tank

You should never breed your betta fish in the male or female betta’s regular tank. A dedicated breeding tank will give the newly hatched fry a much better chance of survival.

A standard 5-gallon betta aquarium is a good size for breeding betta fish. You can go a little larger too because the water depth will only be 5 inches or so.

You don’t want the water in the breeding tank to be too deep because the male will become exhausted from swimming up and down (more on this later).

A small glass aquarium will work perfectly and also give you a great view of the breeding process. Your breeding tank is not a display tank, so it does not need to be made of glass, however.

Plastic containers are also a good option, just make sure they are food-grade and have not been used to store any harsh chemicals. It’s best to choose clear plastic so that you can keep a close eye on breeding fish and fry.

Aquarium Hardware

Bettas are tropical fish, so you will need to keep the water in the breeding tank steady at 80 – 82°F. A small aquarium heater is the best way to keep your water warm.

A filter is optional in the first few days, but you will need to maintain water quality for the growing fry. Water flow will damage the male’s bubble nest, so it is best to use a very gentle type like a sponge filter, and then only once the young fry are free swimming.

Lastly, your breeding tank will need a lid/hood to prevent the male and female betta from jumping out.

Sealing the container with a layer of plastic wrap is recommended if you live in a dry climate. This will increase the humidity and warmth of the air which is important for these air-breathing fish.

Substrate & Decorations

Your breeding tank should not include any substrate. During the spawning process, the male betta fish will collect eggs from the bottom of the tank and deposit them in its bubble nest. Aquarium substrates can make this a lot more difficult.

It is not necessary to decorate your breeding tank, but there are a few essential items that you will need:

• Bubble-wrap

Cut a small square of bubble wrap or a piece of styrofoam from a cup. Male betta fish build their bubble nest around floating or emerging vegetation in nature, but artificial materials are more practical when breeding these fish at home. Bubble wrap is ideal because it is clear, so you can see the eggs when looking from above.

• An Indian almond leaf

These leaves are high in tannins and will lower the pH of the water. This encourages the betta to spawn and also protects the eggs from bacteria and fungal infections.

• A breeding box

You will need something clear to keep the female betta separate from the male. Breeding boxes are ideal, but you can also use a hurricane lamp glass, candle holder glass, or even a cut-up soda bottle.

• A small cave

Male betta fish can be very aggressive toward the female while they are breeding, so it’s important to provide a good hiding place where she can get away when she needs to. A small cave ornament will work, but you can use any aquarium-safe materials to make a cave.

Choosing Which Ones to Breed

You should start by selecting the best adult fish if you want to breed betta fish successfully. But how do you which fish to choose?

You will need at least one male betta and one female betta fish to start breeding, but two or more pairs will give you a higher chance of success. That way, you still have a good chance if one of your fish isn’t in good breeding condition or if a pair just don’t get along. Check out our in-depth guide if you’re not sure how to tell the difference between male and female bettas.

Successfully breeding your betta fish involves more than just putting two fish in a tank and hoping for the best, of course. Here are 5 important factors for choosing a new breeding pair.

Age

Betta fish begin to reach sexual maturity in their third month and will be able to breed for the rest of their lives. If you want the best results, however, breed your bettas when they are 4 to 12 months old.

Health

Choose healthy, vibrant betta fish without physical defects for your breeding pair. The fish should be active and have a healthy appetite. Remember, you want the baby fish to be strong and healthy too, so do not breed poor-quality fish.

The breeding process is hard work and puts the fish under a lot of physical stress. Fish that are underweight or struggling with parasites or diseases might not survive.

Your betta fish also need to accept each other before they spawn. The pair will often fight to test each other’s health and strength, so weaker fish will probably be rejected anyway.

Size

Some betta fish don’t seem to develop as quickly as others, so look for strong, healthy bettas when choosing your breeding stock. Avoid undersized fish, even if they are at the perfect breeding age.

History

Proven breeding fish are always a good option for first-time breeders who want the best chance at success. If you’re buying from a reputable breeder, ask for young fish that have successfully bred in the past.

Breed

Betta fish come in a huge variety of different breeds, and some are more valuable than others. Cross-breeding different types of betta fish can be really fun because you never know what you’re going to get!

Consider focusing on more valuable breeds once you have some experience, especially if you want to sell your betta fish for profit. Buying a breeding pair of show bettas will cost more money of course.

Conditioning Your Fish

Once you have your breeding bettas and all the equipment that you need, it’s time to start preparing your fish. Spawning takes a lot of work and energy, so your fish must be in peak physical condition before you breed them.

So what is conditioning? And how do you condition your bettas for breeding?

Conditioning is simply feeding your bettas a protein-rich diet to fatten them up and get them ready for the hard work of breeding. You can do this by feeding your fish two or three helpings of live or frozen food each day, starting about three weeks before you plan on breeding them.

Best Foods for Conditioning

There are many great foods for conditioning your betta fish before breeding. Let’s take a look at some of the best options:

• Bloodworms (live/ frozen)
• Brine shrimp (live/ frozen)
• Mosquito larvae
• Black worms
• Beef heart

Encouraging Egg Production

You can prepare your female betta for breeding long before the day arrives. Moving your female’s tank to where she can see the male betta in his tank will stimulate her to produce eggs while she is improving her condition.

You should limit the amount of time that they can see each other each day to reduce stress. Allow the breeding pair to see each other for about 15 minutes per day for a week before breeding. Simply use a screen or something similar to block their view for the rest of the day.

Step by Step Instructions

Once you have everything you need, (including a pair of healthy, conditioned betta fish), it’s time to move on to the process of breeding betta fish. It is best to breed your fish over a weekend when you have enough time to watch the process unfold. I provided a video from Blake’s Aquatics. I’ll go over this in more detail below. Let’s get started!

Step 1- Prepare the Tank

• Add about 5 inches of water to the bottom of your breeding tank. You will need to add some water de-chlorinator to make it safe for your fish.
• Add the aquarium heater to the tank. You will need to position it horizontally to keep it under the water, but follow the instructions of the model you have.
• Add a small square of bubble wrap or a piece of styrofoam where the male can build his bubble nest. A two to three-inch square is the ideal size.
• Add the Indian almond leaf to the breeding tank. Larger leaves can be broken in half.

Step 2 – Moving the Pair Into the Tank

• Move the male betta fish into the breeding tank. He should always go in before the female to establish his territory. Test the water before you add your fish. It should have the same temperature and parameters as his regular tank to avoid shock.
• You can add the female to the breeding tank after about a day. Just be sure to keep her separated from the male fish in her breeding box.
• Continue to condition the fish with high-quality, live, or frozen foods while they are in the breeding tank but remove any uneaten food to prevent water quality issues.

Step 3 – Introduce the Breeding Pair

• After about a day, the male betta should have built a large bubble nest in the tank. He will also be flaring at the female. Now it is time to release the female from the breeding box.
• Observe the fish carefully. The male will chase and nip the female betta fish to encourage her to mate. If he gets a little too rough, you might need to separate the pair.
• Give the pair a day to begin spawning, but separate the female in the breeding tank overnight and start the process over if they are not successful.

Step 4 – Spawning

• When the female is ready to spawn, she will approach the male betta near his bubble nest.
• The pair will circle each other until they successfully mate. The male will embrace the female and she will drop her fertilized eggs. Betta eggs are fertilized externally, unlike guppies and other livebearers.
• The male will collect the eggs from the bottom of the tank, or even as they fall, and place them in the bubble nest where they are held at the surface of the water.
• This process can take several hours but check in on the fish regularly to make sure everything is going smoothly.
• If you think you might have missed the action, look for the small white eggs in the bubble nest to know if you have been successful.

Step 5 – Remove the Female

• Once all the eggs are laid, the female should be moved back to her own tank.
• The male will often become aggressive towards her at this point because female betta fish often eat their own eggs.
• The female might be a little roughed up at this point. You can medicate her with a light salt bath or use an aquarium antibiotic to treat her in a separate tank if necessary.
• With the female out of the tank, the male will settle into caring for the eggs.

Step 6 – Hatching

• The male betta fish will continue to guard the eggs until they hatch and the tiny baby fish begin to swim freely. This usually takes about three days.
• At first, the baby fish will be visible by their tails hanging out of the bubbles, and the male will keep working to keep all the hatching babies in the nest.
• Remove the male betta when all the fry has become free swimming.

Caring For Your Fry

Congratulations, you have successfully bred your betta fish! You’re not out of the woods yet though. Your next job is to care for the fry, and hopefully, there are loads of them! Keep reading to learn how to grow healthy betta babies fast.

Feeding

Newly hatched betta fish are incredibly small. They get all the nutrition they need from their yolk sack on their first day and do not need to be fed.

They will need to be fed by their second or third day, however. Let’s take a look at the perfect baby betta foods.

Culturing Live Foods

Baby betta fish love live food. Growing your own live foods will give you the best results, and it’s pretty fun too! Let’s take a look at some live foods that you can grow at home.

• Infusoria

These tiny microorganisms are the best first meal for your baby betta fish. They can be grown by putting some tank water in a tub and keeping it at about 70°F. Add some boiled vegetables like lettuce or some aquarium plant cuttings. You can look at this video by Girl Talks Fish that goes into further detail.

Aerate the water regularly by stirring it a few times each day or running an air pump on low. The process takes two to three weeks, so start this project while you are still conditioning your betta to breed.

• Baby brine shrimp

Your betta fry will grow fast on a protein-rich diet of infusoria and can begin to eat larger foods after a few days. Baby brine shrimp are a perfect meal for growing babies, and the best part is that you can hatch them yourself!

Growing your own baby brine shrimp takes a little effort, but there are some amazing kits available that contain everything you need. Your baby bettas will thank you for it with rapid growth.

Infusoria and baby brine shrimp are great for baby betta fish, but there are many other tiny live foods that you can grow, including:

• Vinegar eels
• Microworms
• Grindal worms

Prepared Foods

There are some amazing dried and gel foods available for the modern fish breeder that are much easier to use than live food.

Baby betta fry are too small to eat regular fish food like pellets and granules, so pick up some powdered foods like Hikari First Bites or Repashy gel foods. After a few weeks, your baby bettas will be big enough to eat regular crushed flakes.

How to Feed The Baby

Use an eye dropper or a syringe to collect your live foods and add them to the water column of your fry tank. Avoid overfeeding, although you will be removing the uneaten foods during regular water changes.

The young bettas can be weaned onto prepared foods after a few weeks but make sure the food is small enough for their tiny mouths. You will need to crush larger foods or grind them between your fingers to make small particles.

Moving the Fry

Your betta fry will grow very quickly if you provide them with a high-quality diet, and they will need to be moved into a larger fry tank after about a month. The young fish are very sensitive at this age, so work carefully and acclimate them slowly to their new home.

The new tank should be cycled and have a running sponge filter that does not create too much current. Live aquarium plants will also improve the water quality while providing hiding places and surfaces for microorganisms to grow as a natural food source.

If possible, move the breeding tank into the larger grow-out tank and allow the water temperature to equalize between the two containers. Test the water in each container to see that they have the same parameters before very slowly pouring the young fish into their new home.

Water Quality

Your betta fry are sensitive to ammonia and nitrites in the water, so test your water daily to monitor the parameters. You will need to perform regular water changes all through the growing process, even with a filter. Large daily water changes could be necessary for the first few weeks.

Betta fry are tiny and easily damaged during maintenance. Scoop the water out very carefully or use gentle suction with a fine screen over the end of the hose. Working in a well-lit room will help you spot the baby bettas and avoid sucking them up.

FAQs

Final Thoughts

Breeding bettas is a wonderful hobby and a fascinating process to watch at home. It is not something you should rush into, of course, so give yourself (and your fish) plenty of time to prepare before you start.

There are many different ways to breed betta fish and the methods in this article work. Don’t be afraid to make adjustments and keep your fishes safety in mind at every step, however. In conclusion, breeding betta fish is all about practice. Don’t be discouraged if you make a mistake here and there, it’s all part of the process!

Do you plan on breeding betta fish? Tell us about your experiences in the comments below!

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📘 Want to learn more? This article is part of our complete Betta Fish Guide — your ultimate resource for betta care, types, tank setup, feeding, tank mates, and more.

Mystery snails are one of the most consistently useful additions to a freshwater community tank. I’ve kept them across multiple setups — they clean algae off glass and decorations, they’re peaceful with virtually every fish, and they won’t devour your live plants the way pond snails will. The one thing new keepers underestimate is how much they need calcium supplementation — without it, shells start to pit and erode. Here’s everything you need to know to keep them healthy long-term.

An Overview

Scientific Name	Pomacea spp.
Common Names	Mystery snails, Apple snails
Family	Ampullariidae (sometimes referred to as Pilidae)
Origin	South America
Diet	Omnivore
Care Level	Easy
Activity	Moderate
Lifespan	1 to 3 years
Temperament	Peaceful
Tank Level	Bottom
Minimum Tank Size	10 gallons
Temperature Range	68 to 84° F
Water Hardness	12 to 18 KH
pH Range	7.0 – 8.4
Filtration/Water Flow	Low to High
Water Type	Freshwater
Breeding	Egg-layer
Difficulty to Breed	Easy
Compatibility	Community Tanks
OK, for Planted Tanks?	Yes

What Are They?

Depending on who you ask, mystery snails are either the best or worse thing that has ever happened to their freshwater aquarium. These are large and colorful snails that help keep the aquarium glass clean but that can also quickly overpopulate the system if left uncontrolled.

The term mystery snail generally refers to all species in the Pomacea genus under the Ampullariidae family. Depending on the exact species being considered, coloration can vary which leads to more exact common names, like black mystery snail or golden mystery snail. In general, mystery snails are categorized as Pomacea bridgesii, though this may not always be the right taxonomy.

Another common term for the mystery snail is apple snail. This is because all members under the larger category of Ampullariidae are known as apple snails. However, mystery snails are much different from true apple snails.

Their Anatomy

Snails are simple creatures. So much so that many hobbyists overlook exactly how their anatomy and physiology benefit their freshwater aquarium. In fact, snails are fascinating creatures that are able to tolerate some of the fastest-changing environments on this planet.

Basic snail anatomy is as follows (picture source from Lander University):

Shell. All snail shells, including mystery snail shells, are mostly made of hard calcium carbonate that grows with the snail for the duration of its life; this calcium carbonate is very similar to what saltwater corals are made of! At the center of the shell is typically a pointed whorl.

Most of the needed calcium is taken in through diet. A chipping or brittle snail shell can mean a lack of nutrients. Snail shells can come in many colors, though mystery snails usually come in brown, black, and yellow.

Foot. The foot is the long muscular fleshy bottom of the animal. Contractions of these muscles allow the snail to propel itself forward. Snails coat their foot in a unique thin layer of mucus which allows them to stick to many surfaces. Foots can come in different colors as well, though mystery snail feet are typically black, tan, or light yellow.

Operculum. The operculum is a small, usually calcareous, disc that creates a seal with the shell and covers the body of the snail when retracted. Not all snails have an operculum, but mystery snails do. If the operculum of your snail has fallen off, there is a good chance that it is either dead or dying.

Mouth and radula. The mouth is one of the coolest adaptations of freshwater, saltwater, brackish, and terrestrial snails. Most snails use a radula, or a specialized tooth-covered tongue, to scrap off algae and other microflora from hard surfaces. However, some snails, like the marine cone snail (Conus spp.), have evolved a proboscis that fires a venomous harpoon.

The next time you see your mystery snail on the glass, look for its mouth and radula. You will see the radula scraping away any algae that might be present.

Tentacles. Not to be mistaken for antennae, aquatic snails have two tentacles that they use to locate food. These tentacles cannot be withdrawn.

Siphon. One of the few snails to have a siphon, this morphology makes mystery snails unique. A siphon is a long tube–longer than the snail’s tentacles–that can be used to reach above the surface of the water to breathe air. This is an important adaptation to surviving poor water quality, incorrect water parameters, and low levels of dissolved oxygen.

Eyes. Aquatic snails have relatively large eyes that they use to detect light sensitivity. Though this can help locate some food, their eyes are largely used for spotting predators.

Origin and Habitat

Most pest snails originate from Asia, but the mystery snail actually comes from the Amazon River basin throughout South America which is home to many other species of tropical fish and invertebrates. More specifically, mystery snails have been documented in Brazil, Paraguay, Peru, and Bolivia. Due to how prolific these snails are, they have spread as an invasive species to southern regions of North America, from Central America up through Florida, United States.

Mystery snails especially excel in densely vegetated areas where algae is free to grow. One thing to note is that these snails are usually found in harder, cooler waters. This will be important to consider when adding them to your freshwater aquarium.

Appearance

Mystery snails are a favorite snail for hobbyists due to the many colors and patterns they come in. These snail shells basically come in every color, including brown, black, green, yellow, and even blue. The foot of the snail is usually either black or tan depending on the color of the snail shell.

These snails have a round appearance with a smooth shell and pointed whorl. On average, they grow to be about 1 to 2 inches. Their tentacles are very noticeable, which can become problematic if kept with fin nippers.

Here are some of the most common varieties of mystery snail to find at local fish stores:

• Black mystery snail. This snail has a dark brown shell and a near-black foot. The shell sometimes has long black lines with lighter brown ones in between.
• Golden mystery snail. The golden mystery snail has a deep yellow shell with a light yellow foot. The top of the foot often has speckles of gold flakes. Though these snails might look it, they are not albino.
• Blue mystery snail. One of the odder colors of snail shell to find, the blue mystery snail has a bluish-ivory shell with a dark, ash-colored foot. The shell may sometimes have streaks or patches of yellow or white.

Can You Tell A Male From A Female?

Mystery snails reproduce sexually and both a male and female are required for spawning. Luckily, there is a way to tell male mystery snails apart from females. Unluckily, females have the ability to hold sperm for several months which means that you may still get baby snails from a newly added mystery snail in your tank even if there are no males present.

Here is how to tell males apart from females:

1. Carefully remove the snail from the aquarium.
2. Hold the snail on its back.
3. Once the snail starts to come out of its shell (while still being held on its back), look at the space in between the head and the shell.
4. Females will have an open space while males will have a noticeable light-colored penis sheath.
5. Place the snail back in the water.

Their Care

Mystery snail care is very easy and requires little aquarium experience. That being said, these snails still require a fully cycled aquarium where toxic ammonia can be safely converted into nitrate without having to worry that you’ll kill your fish and invertebrates.

Aquarium Setup

Mystery snails aren’t picky about their surroundings. These freshwater snails can be kept in a simple start-up aquarium or a mature planted display.

A mystery snail tank does not need to be set up with them in mind, though providing some snail-specific hiding spots will be appreciated. This can be in the form of live or fake plants, rocks, driftwood, and other fish-safe decorations.

These snails are so hardy that they don’t even need an aquarium filter as long as water quality is maintained!

Tank Size

The minimum tank size recommended for mystery snails is 10 gallons; 10 gallons will allow for about 2 or 3 of these snails. These are some of the larger freshwater snails available and they create a lot of waste, so it’s better to have a bigger tank that not only provides more surface area for grazing but also dilutes wastes with more water volume.

That being said, many hobbyists are able to set up a 5 gallon mystery snail tank without any problems. This is completely possible as long as water quality is maintained and food is supplemented when the naturally occurring algae runs out. Also, keep in mind that a smaller tank limits how many other tank mates can be added as mystery snails create significant waste.

Water Parameters

Like other invertebrates, mystery snails are sensitive to ammonia and nitrite. They are more tolerant to nitrate but will suffer from excessive levels, usually over 20 ppm. They are also intolerant of copper, which must be considered if dosing medications into the display aquarium.

Mystery snails are very forgiving of imperfect water parameters, but they do have some preferred conditions. Most notably, these snails do best in a cooler water temperature between 68 to 84° F. Many of the snails available in the aquarium hobby are kept at regular tropical temperatures in the upper 70s, though some hobbyists have better success in the lower range.

Similarly, mystery snails refer harder and more basic water with a hardness level between 12 to 18 KH and a pH level between 7.0 to 8.4. This is different from other Amazonian species that come from their natural habitat, which oftentimes prefer softer, more acidic water parameters. That being said, most snails are kept in standard tropical conditions in pet stores.

Filtration and Aeration

Believe it or not, mystery snails need decent filtration. These snails are constantly grazing and what goes in must come out. Mystery snails can be kept in an aquarium filtered by hang on the back filters, canister filters, or sponge filters.

Some hobbyists add this species to their Walstad aquariums which rely on a delicate balance between fish waste and plant intake to stabilize water parameters without additional filtration. In our opinion, there are better snail options for these types of aquariums, like nerite snails (Neritina spp.), which are excellent algae cleaners and can’t reproduce without brackish water conditions.

There is some benefit to snail poop, though. Interestingly, mystery snail feces get caught in the trailing mucus of the snail. Over a short period of time, this cultivates infusoria, a combination of microscopic organisms, which are appreciated by small invertebrates and fry. For this reason, mystery snails are often added to breeding tanks to help keep small fish fed.

Otherwise, mystery snails don’t necessarily need additional aeration as long as dissolved oxygen levels are maintained. These snails do have a ton of personality though, and it’s not uncommon to find your mystery snail floating to the bottom of the tank past a column of bubbles.

Lighting

Mystery snails can tolerate most lighting conditions. Like other freshwater fish and invertebrates, they appreciate having areas of shade to hide and forage when need be.

On top of this, most species of snail are nocturnal and the mystery snail is no different. Though these snails are semi-active during the day, they are typically most active at night; it should be noted that snails have very irregular sleep patterns and have been known to stay inactive for several days on end. While this is normal, it is best to keep an eye on the following behaviors of your mystery snail as well as those of other tank inhabitants.

Aquatic Plants and Decorations

Mystery snails absolutely love live plants and decorations. These snails spend the majority of their time scraping algae and other biofilms off of surfaces throughout the fish tank, and the more surfaces available the better.

One common fear of keeping freshwater snails is that they eat healthy live plants. Mystery snails are very unlikely to eat healthy plants, though they will help clean up decaying leaves and stems. It should also be noted that some hobbyists have found their mystery snail-eating duckweed (Lemnoideae subfamily) at the top of their tank. This is usually welcomed as duckweed can be overly prolific.

That being said, mystery snails do not need live aquatic plants to thrive. As long as the tank has a mature layer of algae and biofilm, these snails can be sustained with some added algae wafers and vegetables.

Tank Maintenance

In some ways, the less maintenance the better for a mystery snail colony. These snails like ‘dirty’ conditions–or rather, areas with plenty of natural food that keeps them busy. Because of this, the front of the aquarium glass usually stays pretty clean.

However, snail poop can definitely accumulate on the bottom of the aquarium, which can become unsightly and lead to some water parameter issues over time; the mystery snail is one of the messier types of snail to keep, so water quality needs to be maintained. To help prevent poor water quality, occasionally vacuum the bottom of the substrate with an aquarium siphon. This can be done during 15-25% weekly or biweekly water changes.

Filter media should also be changed as needed. Sponge filters can be rinsed out less often than usual as snails love to graze on what’s available.

Substrate

Mystery snails can be kept on gravel, sand, or a bare bottom. These snails travel easier over smooth surfaces but will appreciate eating detritus that gets caught between coarse gravel. On the other hand, sand is much easier to siphon to remove snail waste.

Community Tank Mates

This species of snail is the perfect community tank mate. They leave fish and other invertebrates alone while helping keep the fish tank clean. However, some community tank species might have a special appetite for your mystery snail.

In general, known fin nippers should be avoided. Mystery snails have especially long tentacles that could look appetizing to a curious fish. Fin nippers might include larger barbs and some larger tetras. If you have healthy mystery snails, they should be able to retract before any damage can be done.

Known snail-eaters should also be avoided. This largely includes loaches and puffers.

Mystery snails are a popular combination in a betta fish tank. For the most part, this depends on the temperament of the betta fish. Some bettas are more aggressive than others and might try to nip at the snail.

Can You Keep Only 1 ?

Yes! You can only keep 1 mystery snail per tank as they are not social animals. This is especially useful for small tanks, like a betta fish setup.

It is also strongly recommended to only keep 1 mystery snail when breeding is not desired. As we’ll see, these snails will breed when given the opportunity, and having multiple in a tank can quickly lead to overpopulation. Unfortunately, female snails can withhold sperm for several months, which means that you can still end up with an overpopulation.

Food and Diet

Mystery snails are pickier eaters than you might think. They don’t eat live plants and they won’t clean up fish waste. In fact, these snails love a healthy diet of leafy greens and algae wafers.

That isn’t to say that you need to spend a ton on feeding mystery snails. They will largely accept leftover fish flakes and other live, frozen, and freeze-dried foods that make their way to the bottom of the tank. They will also appreciate the occasional algae wafer or pellet and blanched vegetable from time to time. In fact, blanched vegetables can be used to capture and remove overpopulations of snails.

If you notice that your snail has a broken or chipped shell, it may be lacking calcium in its diet. A higher-quality food can be supplemented, or a snail-specific calcium block can also be given.

As mentioned before, mystery snails have been known to eat duckweed, though this isn’t their typical diet.

Breeding

Breeding mystery snails is very, very easy and often happens on its own. If you have a male and female mystery snail in your tank, they will breed as long as their basic needs are met. As mentioned before, some females can even hold sperm for up to a year, which means that you can end up with baby snails long after introducing a solitary snail into the system (video source).

If you find that your mystery snails aren’t breeding, try performing larger water changes and feeding better quality food more often. Be warned that once they start, they won’t stop!

Luckily, snail eggs can be crushed if found. These eggs are usually laid in a clutch right above or below the water line.

Common Problems

Though snails are some of the easiest freshwater creatures to keep, there are some problems you can potentially run into.

Brittle or Irregular Shell Growth

Shell health is important! For the most part, good water quality will allow for healthy shell growth, but sometimes nutrients are lacking. The main nutrient that snails need for a healthy shell is calcium.

If you notice chipped or cracked shells, usually indicated by a white scratch or indent, then your snail might be struggling with generating a healthy shell. Snails are attached to their shells and need nutrients to maintain them. Calcium can be supplemented through a higher-quality diet or through snail-specific calcium blocks.

Overpopulation

The second most common problem snail enthusiasts run into is overpopulation. Mystery snails readily breed and can quickly overtake a freshwater tank when parameters are met.

Overpopulation can be difficult to deal with as hobbyists need to find a place for excess snails. Most hobbyists move these snails into a separate low-maintenance tank, where they let the colony live among an abundance of live plants. Other hobbyists give their snails back to their local pet store or to other hobbyists with a predatory tank that feeds snails.

Unfortunately, many hobbyists need to remove snails once they become a problem and humanely dispose of them. If you happen to find snail eggs before they hatch, then they can be crushed.

Final Thoughts

Mystery snails are easy to keep, easy to find, and easy to add to the freshwater community aquarium. These snails grow larger than most other freshwater species and can create an above-average amount of waste, but they are efficient algae cleaners that keep aquarium glass clean. Poor shell health and overpopulation can become problems if left untreated.

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📘 Want to learn more? This article is part of our complete Freshwater Fish Guide — your ultimate resource for freshwater species, care tips, tank setup, and more.

Peacock cichlids are one of my top recommendations for anyone who wants the look of a reef tank in freshwater — the males are that colorful. I’ve kept African cichlids including peacocks, and what sets them apart from the more aggressive mbuna is that they’re genuinely manageable in a community of similarly-sized fish. They have specific water requirements that mirror Lake Malawi’s chemistry, and if you get that right, they’re some of the most rewarding fish you can keep.

Peacock cichlids are some of the most visually stunning fish from the African Great Lakes. They’re Lake Malawi cichlids, but they’re a fundamentally different animal from mbuna — more peaceful, less territorial, and much better suited to mixed community setups. I’ve kept Aulonocara species and what sets them apart is that extraordinary iridescent coloration the males develop under proper lighting. Getting the species mix right and avoiding nippy tankmates that stress them is the key to success. Here’s the full breakdown on care.

An Overview

Scientific Name	Aulonocara
Common Names	Peacock Cichlid, African Cichlid, Peacock fish
Family	Cichlidae
Origin	East Africa
Diet	Omnivore
Care Level	Moderate
Activity	Extremely active
Lifespan	6 to 8 years
Temperament	Semi-aggressive
Tank Level	Mid to bottom
Minimum Tank Size	55 gallons
Temperature Range	74 F° to 82 F°
Water Hardness	4 to 6 KH
pH Range	7.8 – 8.6
Filtration/Water Flow	Low to moderate
Water Type	Freshwater
Breeding	Mouth Brooder
Difficulty to Breed	Easy
Compatibility	African Cichlid tanks
OK, for Planted Tanks?	With caution

What Is It?

Peacock Cichlids make a magnificent addition to a home aquarium, thanks to their beautiful colors and unique personality.

They scientifically go as Aulonocora while commonly recognized as Peacock Cichlid or Peacock fish. You can sometimes hear people referring to them as African Cichlids due to their origin.

Peacock Cichlids are a part of the Cichlidae family from the order Cichliformes. While most Cichlid fish are either semi-aggressive or highly territorial, Peacock Cichlids are relatively peaceful.

Origin and Habitat

Peacock Cichlids hail from the ancient lake called Lake Malawi in East Africa. It is the second largest and third deepest lake on the African Continent, making it the fourth largest lake globally. They were first discovered in 1922 by the British ichthyologist Charles Tale Regan.

These hardy species inhabit areas that are 100 to 130 ft deep, with the lake overall 2,300 ft in depth. Apart from higher pH levels, their natural habitat comprises a large number of rocks. And surprisingly, all types of Peacock Cichlids originate from Lake Malawi.

Appearance

Similar to their name, Peacock Cichlids take on colors like dark blues and deep greens found in a Peacock. But their extraordinarily beautiful body coloration and uniquely designed patterns are not limited to a single set of shades. Instead, these fish exhibit every color variation you can ever think of.

With almost 22 types of Peacock Cichlids currently found around the world, each fish tends to feature shades that look absolutely stunning and rare to find. Some of the most commonly known colors are deep yellow, dark red, bright pink, burning orange, or sometimes gold. They can also feature purple or deep black.

Coming to the body shapes, a Peacock Cichlid has a long body. The morphology of a Peacock Cichlid looks similar to that of a fusiform fish or roughly like a torpedo-shaped fish with taking on a thick form once hitting adulthood. Apart from featuring mesmerizing colors, they have 6 fins with prominent points scattered all across the fins.

They have long and pointed dorsal fins which run the length of their spine. The elongated rays on their dorsal fins shape these points on the rear edges. The anal fin is shaped exactly like the dorsal fin. But these fins are slightly smaller compared to the dorsal fin. And when you look at their tails, you will see fan-shaped tails with pretty rounded edges.

The good thing about Peacock Cichlids is that their colors don’t go dim with their mood swings. And unlike other fish that with time go dull, Peacock Cichlids remain the same throughout their lives.

When it comes to male Peacock Cichlids and female Peacock Cichlids, the main difference is color deepness. Similar to juveniles, the females usually feature a dull greyish shade. The origin of the fish can also be a factor that determines the color of the female fish.

The males, on the contrary, showcase extremely vivid colors. The colorful array includes shades like red, blue, black, purple, orange, yellow, and sometimes gold. The females stay the same throughout their lives, whereas the males undergo a dramatic transformation as they grow. But that doesn’t make the females any less beautiful to look at.

Peacock vs. Mbuna Cichlids

Some people don’t know how to categorize them which results in giving rise to a few misconceptions. Therefore, I’ll go over all those differences between a Peacock Cichlid and a Mbuna Cichlid to help you go ahead and purchase the fish that you’re looking for.

Both Mbuna and Peacock Cichlids have interesting personalities. They are active and can easily get along with other fish. The only thing you need to do is pick the less aggressive Peacock Cichlid males. Another interesting thing is their ability to recognize their owners. Both species take only a second to recognize who owns them.

And as far as eating goes, they are active eaters capable of hungrily attacking the food as soon as they get a chance. While Mbuna fish don’t eat everything, you get plenty of freedom to choose what goes into a Peacock Cichlid tank.

They also share the same water parameters but vary in coloration. The males of both species have attractive colors. Peacock Cichlids are slightly shimmery, whereas Mbuna Cichlids have solid and stronger color patterns. But for females, Peacock Cichlids have a drawback. The female Peacock Cichlid is either silver or brown. Mbuna females however are equally colorful as their male counterparts.

Factors like breeding might alter their body coloration. But they usually stay the same throughout their lives. Peacock Cichlids don’t develop bright colors while young. Mbuna Cichlids, however, pick on stronger shades as juveniles pretty normally.

Another essential difference is territorial aggression in male Peacock Cichlids. The males can never establish peace if put in a small tank. The dominant male looks brightly colored in a small tank with submissive males. But as soon as you shift it to a community tank where other males are as aggressive, it can go dull for a better part of its life.

This trait can cause issues if you’re purchasing a male Peacock Cichlid that is usually around 60$ per male.

Types

Peacock Cichlids have almost 22 color variables that are stunning and rare to find in most freshwater fish species. Each fish has an incredible color pattern with its own personality traits. While mentioning all of them here can be demanding, I’ll list down the most famous types of Peacock Cichlids with all the necessary information you need to know.

1. Lemon Jake

• Scientific Name: Aulonocara Mamelela
• Difficulty Level: Easy
• Temperament: Aggressive
• Adult Size: 6 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore but mostly carnivorous
• Origin: Lake Malawi, Africa
• Temperature: 74° F to 82 F°
• pH: 7.5 – 8.5
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Lemon Jake Peacock is a color variation of Peacock Cichlids (video source).

The Lemon Jake Peacock Cichlids have a blue-colored base with extremely bold yellow fins. You can also see white-colored lines covering the edges of their unpaired fins. The same shade also occasionally appears on the fish’s body in regular lines. They mostly prefer meaty foods and need a clean environment to stay healthy.

2. Flavescent

• Scientific Name: Aulonocara stuartgranti
• Difficulty Level: Easy
• Temperament: Aggressive
• Adult Size: 4.5 to 7 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore
• Origin: Usisya region
• Temperature: 74 F° to 82 F°
• pH: 7.5 – 8.4
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Flavescent Peacock (video source) hail from the Usisya region and look similar to Lemon Jate in appearance. They have blue heads, a bright yellow base, and a set of fins that are dark black with blue edges. You can see blue hues running all across their bodies with a bright yellow spot on their tail blade.

Female Flavescent Peacocks are shorter than their male counterparts and have deep vertical stripes on their base. Flavescent Peacocks prefer meaty foods and can show aggression on a number of occasions.

3. Red

• Scientific Name: Aulonocara Red Ruby
• Difficulty Level: Easy
• Temperament: Semi-aggressive
• Adult Size: 5 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore
• Origin: Lake Malawi, Africa
• Temperature: 73 F° to 84 F°
• pH: 7.5 – 8.5
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Red Peacock Cichlid is a bright red-colored fish with a blue head that gives it a unique appearance (video source).

Out of the 22 types of Peacock Cichlids, they are one of the most beautiful fish you will ever see. The males have prominent dorsal and anal fins which are larger as compared to the rounded fins of a female. In the wild, they feed on meaty food like small crustaceans, cichlid fry, and algae.

4. Benga/Sunshine

• Scientific Name: Aulonocara baenschi
• Difficulty Level: Easy
• Temperament: Aggressive
• Adult Size: 6 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore
• Origin: Lake Malawi, Africa
• Temperature: 74 F° to 82 F°
• pH: 7.5 – 8.4
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Benga or Sunshine Peacock (video source) is another extremely bold-colored fish from the 22 types of Peacock Cichlids. They have brilliant yellow bodies with hues of blue visible below their eyes.

They prefer meaty foods and need clean water to thrive. The aggression level of these fish is mild, which makes them easy to care for. Apart from Sunshine Peacock, their other common names are Nkhomo Benga Peacock, New Yellow Regal Peacock, and Benga Yellow Peacock.

5. Blue Neon

• Scientific Name: Aulonocara stuartgranti (Chiwindi)
• Difficulty Level: Easy
• Temperament: Semi-aggressive
• Adult Size: 6 inches
• Minimum Tank Size: 55 gallons
• Diet: Carnivore
• Origin: Lake Malawi, Africa
• Temperature: 74 F° to 82 F°
• pH: 7.5 – 8.4
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Blue Neon Peacock Cichlid (video source) is another beautiful color variation of Peacock Cichlids with a similar appearance to the Flavescent Peacocks. The main difference is the color of the fins.

The Blue Peacock Cichlid has a bright yellow base with blue fins. The base might also appear blue towards the posterior half with a shimmery blue head. They feed on meaty foods and are slightly aggressive.

6. Bi-Color 500

• Scientific Name: Aulonocara stuartgranti Maulana
• Difficulty Level: Easy
• Temperament: Peaceful
• Adult Size: 6 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore
• Origin: Chitimba Bay in Lake Malawi, Africa
• Temperature: 74 F° to 82 F°
• pH: 7.5 – 8.4
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

B-color 500 Peacock (video source) or Maulana Bicolor Peacock features a bold blue body with shades of brilliant gold, blue, and sometimes red around its shoulders.

Unlike other Cichlid species from the Peacock Cichlid, they are known for establishing peace with other species. The number included in their name comes from the fact that they are on Stuart Grant’s export list as item 500.

7. Dragon Blood

• Scientific Name: Aulonocara baenschi
• Difficulty Level: Easy
• Temperament: Semi-aggressive
• Adult Size: 6 inches
• Minimum Tank Size: 55 gallons
• Diet: Omnivore
• Origin: Lake Malawi, Africa
• Temperature: 74 F° to 82 F°
• pH: 7.5 – 8.4
• Difficulty to breed: Easy
• Planted aquarium suitability: Good

The Dragon Peacock, Dragon Blood Peacock Cichlids, or Firefish is a hybrid fish that looks incredibly beautiful with its bright red-colored body (video source).

The fins of the fish are marked with spots that look quite prominent on their transparent fins. The females are pretty average looking as compared to the males with a silver body and occasional red markings. They can take on shades like light pink, orange, and bright red with shades of white and blue covering their fins.

Lifespan

The average Peacock Cichlid lifespan is between 6 to 8 years depending on how well you look after them. Since they have weak tolerance for disturbed water levels, you need to properly maintain water parameters.

Things like food, tank environment and precautions to minimize the chances of catching fish diseases also help with maintaining a healthy life cycle for a Peacock Cichlid.

Average Size

Peacock Cichlids can normally grow up to 4 inches, with the males being typically larger than the females. Some varieties can be as big as 7 inches, and in some rare cases, they can be 10 inches long.

Care

For a typically peaceful fish like Peacock Cichlid, you don’t have to make a lot of arrangements so that the fish can easily inhabit your home aquarium. But, it’s always better to know how to make your freshwater aquarium fish happy and help it stay healthy. 

So, before you bring them to your home, make sure you know their natural habitat conditions, tank mates that they can get along with, foods that are essential to their nourishment, and how to filter out toxins from their tank.

Aquarium Setup

A perfect aquarium setup means the first step to helping your fish withstand environmental change.

To create a perfect aquarium setup, make sure you get a large tank because Peacock Cichlids are energetic and love exploring their surrounding areas. Another important thing you should know is to give them time to adjust in a community tank. I would suggest you first keep them in a species-only tank before attempting to keep them in a community aquarium.

Since the water of Lake Malawi stays warm around the year, purchase a heater to keep the water warm. You can use a thermometer or a controller to check the consistency.

Pro tip: The tank of a Peacock Cichlid should be horizontal rather than vertical.

Tank Size

The minimum tank size for a small group of Peacock Cichlids should be around 55 gallons. If you want to house multiple species in a tank, make sure the tank is at least 100 gallons.

Water Parameters (Tank Conditions)

One of the basic elements of Peacock Cichlid care is consistent water parameters and water quality. Since they are used to warm water, high acidic levels, and moderate water hardness, these water chemistry levels are ideal for a Peacock Cichlid tank setup:

• Water temperature: 74 F° to 82 F°
• pH levels: 7.5 to 8.5
• Water hardness: 4 to 6 dH

For hardness and pH, Texas Holey Rock is a great way to buffer your pH and hardness while also giving lots of shelter for your Peacocks.

Filtration and Aeration

Filtration is one of the most important things to consider here. Because a large tank with lots of fish will result in a cumulative amount of fish waste piling up in the tank. This can encourage the presence of toxins like ammonia and nitrite which are extremely dangerous for the inhabitants of freshwater aquariums.      

Even though any filter will work fine, I would recommend a strong canister filter for a 55-gallon tank.         

Lighting

As a dwelling fish, fish Peacock Cichlids tend to stay at the bottom areas where the light exposure is always dim.

While setting up their tank, you can use a light setup that doesn’t disturb their daily activities during the night hours. Throughout the day, make sure the tank gets exposed to natural lighting so the plants can grow and boost oxygenation levels. Dark aquarium backgrounds also will highlight their colors.

Aquatic Plants and Decorations

Peacock Cichlids are skilled swimmers and love exploring what is around them. So when you choose something for their tank, don’t forget to pay close attention to the minor details.

Apart from supplementing their tank with live plants, you need lots of caves and rocks to stem the flow of territorial aggression among the species. While choosing caves or any decor, make sure you avoid everything that has rough edges because the fish will always stay at the mid or bottom levels. Also, consider adding Driftwood to their tank since Peacock Cichlids love to have it around them.

For plants, I have a list of live plants you can get for your fish.

• Duckweed
• Java Fern
• Anacharis
• Crinum
• Vallisneria
• Cryptocoryne

Note that there isn’t a true Cichlid proof plant, but these above recover the best and will be affected the least among their peers.

Tank Maintenance

Apart from getting a strong filtration system, you need to properly maintain your tank so the inhabitants can have a completely safe environment.

Here are some tips that will help you keep your tank and decorations in a good condition.

• Use an algae scraper to clean the tank walls
• Take out decorations and rocks as needed to brush algae off them
• Perform frequent water changes
• Trim the plants occasionally and remove waste plant material

Substrate

In their natural habitat, the bottom is covered with soft sand so their gills don’t get damaged when they filter the substrate through their frail gills.

I would highly recommend going for aragonite sand which is ideal for Cichlid species. Apart from being soft, aragonite sand fits perfectly for the roles of making nests, laying eggs, and discharging minerals into the water.

Community Tank Mates

Building a community tank with Peacock Cichlids is straightforward. Even though they have some temperamental issues, they make good tank mates if you understand their behavior and activity level.

While the females have a cool temperament, male Peacocks can act pretty aggressively around their male counterparts. They form territories. And if they feel threatened by any other male, serious bullying, harassment, and extreme fights can be seen among the fish species.

Here’s a list of some of the best Peacock Cichlid tank mates you can go for.

• Botia Loaches
• Rainbow Sharks
• Haplochrome Cichlids
• Clown Plecos
• Red Tail Sharks
• Milder Mbuna Cichlids or females

Poor Tank Mates

Compatibility issues can create problems for you and your fish. To avoid unexpected fights, don’t house your Peacock Cichlid with:

• Boisterous Mbuna Cichlids
• Any aggressive fish or shy fish
• Any fish that will not survive in the hard water and pH required for these fish

Breeding

Peacock Cichlids are quite expensive. But thankfully, breeding them in home aquariums is possible and quite simple. To ensure successful breeding, make sure you read and follow everything I mention here.

The first step to breed Peacock Cichlids is to prepare a separate breeding tank. Actually, you need 3 different tanks to avoid any chaos and minimize the chances of an unsuccessful breeding. The main tank, a tank for the fry, and a tank for the juveniles. If you want to see an in-depth video, check out this video by Ricky Kenerly Cichlids.

The first tank will have one male and 2 females. The ratio will go like this to prevent territorial aggression. Make sure the tank is at least 50 gallons filled with a sandy substrate and lots of hiding places. To condition them to breed, start gradually raising the temperature up to 84 F°. Also, add a protein-rich diet to their menu.

When the intended breeding pair is ready, the male will perform a beautiful dance to attract the attention of the female. Once he’s done with that, he will encourage her to lay her eggs in front of his territory where he will later fertilize them.

Since Peacock Cichlids are mouth brooders, the female will carry the eggs in her mouth to the decided location. It can be either in one of the caves or on top of the rocks. This period is called the incubation period. Luckily, the parents will not harm their eggs in a Peacock Cichlid’s case. It will take her up to 21 days to finish the incubation process, after which, you have to shift the mother and her eggs to the fry tank.

The mother can stay with the fry for a couple of days. This is necessary for her to regain energy. After moving her back to the home tank, start focusing on the fry. From feeding them baby brine shrimp to other commercial foods, you can feed them plenty of different things that are small for the juveniles to swallow.

Food and Diet

As skilled swimmers and natural predators as they are, relying only on frozen foods is not enough. You should feed them insects, crustaceans, and brine shrimp. Apart from these options, you can feed your pet sinking cichlid pellets, granules, flakes, frozen brine shrimp, and vegetables. Spinach and lettuce are some great options.

Avoid feeding them worms and mammalian meat which can cause Malawi Bloat in these colorful fish. Overfeeding can be an issue here. It’s better to break down big meals into small ones and feed them only thrice a day.

Common Health Problems

Peacock Cichlid varieties can undergo a species-specific disease and some common fish diseases. The best possible way to keep these ailments at bay is to keep the water clean and toxins out of the tank.

Malawi Bloat

Malawi Bloat is identical to dropsy, but it can be fatal. This disease is usually caused by feeding your fish an excessive amount of meaty foods.

Some common symptoms are:

1. Abdominal inflammation
2. Loss of appetite
3. Difficult breathing

Swim Bladder Disease

This is another common fish disease. It can be caused by parasites or gas in the intestines.

Some common symptoms are:

1. Floating to the top of the tank
2. Distended abdomen
3. Loss of appetite
4. Curved back

FAQs

Closing Thoughts

If you’re looking for an interesting and personable fish to keep in your tank, the Peacock Cichlid is a great choice. These fish are easy to breed and do well in larger tanks, making them perfect for any aquarium enthusiast. Have you kept these fish before? Let us know in the comments!

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📘 Want to learn more? This article is part of our complete Freshwater Fish Guide — your ultimate resource for freshwater species, care tips, tank setup, and more.

The Zebra Pleco is one of the most coveted fish in the hobby, and honestly, that reputation is earned. I’ve seen them in person at trade shows and they genuinely stop you in your tracks — that bold black-and-white pattern doesn’t look real. They’re not cheap and they’re not beginner fish, but if you have a warm, well-oxygenated tank and can source quality specimens, they’re one of the most rewarding plecos you can keep. Here’s everything you need to actually succeed with them.

The Zebra Pleco is one of those fish that serious hobbyists aspire to own. Hypancistrus zebra (L046) was listed as an endangered species in its native Rio Xingu in Brazil, and imports were restricted for years — which drove prices up considerably but also pushed the hobby toward captive breeding, which has been a genuine success story. One critical point most care guides gloss over: zebra plecos are primarily carnivores, not algae eaters. Don’t expect them to clean your glass. Here’s what they actually need to thrive.

Scientific Name	Hypancistrus zebra
Common Names	Zebra Plecostomus, Imperial Pleco, Hypancistrus Zebra, L46, L98.
Family	Loricariidae
Origin	Big Bend area of the Xingu River, a branch of the Amazon River.
Diet	Omnivore
Care Level	Intermediate
Activity	Nocturnal fish species, very active at night
Lifespan	10 to 15 years
Temperament	Peaceful but moderately territorial
Tank Level	Top
Minimum Tank Size	30 gallons
Temperature Range	78 – 88 °F (26 – 31 °C)
Water Hardness	2 – 6 dKH
pH Range	6.5 – 7.0
Filtration/Water Flow	Low
Water Type	Brackish
Breeding	Egg Layer
Difficulty to Breed	Moderate
Compatibility	Community tanks
OK, for Planted Tanks?	Yes

What is It?

The zebra pleco (Hypancistrus zebra) is a species of freshwater fish in the family Loricariidae native to the Essequibo River basin in Guyana and Big Bend area of the Xingu River, a branch of the Amazon River. An aquarist first discovered this fish species it in 1991. The zebra pleco reaches up to 12 cm (4.7 in) in standard length. 

The zebra pleco gets its name from its black and white stripes, which resemble those of a zebra, and the three pairs of barbels on its face. This species is found in rocky areas of rivers with little current and plenty of hiding places among the rocks and roots.

Types

There are three types of Zebra pleco:

• The typical zebra pleco, Loricariichthys plecostomus
• The king tiger pleco, Loricariichthys tigrinus
• The queen tiger pleco, Loricariichthys Tigris

All three fish species have black and white stripes running down their bodies. The typical zebra pleco is the most popular type of zebra Pleco among aquarium hobbyists. The king and queen tigers are less commonly seen in aquariums but are still sought after by some hobbyists.

Origin and habitat

The Zebra Pleco, Hypostomus plecostomus, is a freshwater fish found in South America’s Amazon and Orinoco River basins. These fish are sometimes kept as aquarium pets but are best suited for live food consumption.

Like all plecos, the Zebra Pleco is an omnivore that feeds on small invertebrates, plant material, and even some tiny fish. They are peaceful fish and do well in groups of similar-sized specimens. 

A healthy Zebra Pleco should have a dark body with a lighter stripe running down its midsection. Their scales should be smooth and their eyes bright. When kept in captivity, they should have plenty of clean water to swim and sink in and a sandy substrate to hide in.

Behavior and Temperament

Unless you’re trying to find an active fish in your tank to keep you entertained, the zebras will be ok with them. In new situations, they may be shy and timid – Often, they prefer hiding under caves or behind boulders to stay quiet or hidden. 

Also, they’re nocturnal fish, meaning they’ll do nothing during the daytime. Usually, they lie down under the tank during the night or sleep. At night, they come out of the shell to explore the tank and interact with other creatures inside the tank.

Although female zebra plecos stay quiet, there should be more attention to the males.

Appearance

The Zebra Pleco is a popular freshwater fish that has begun to infest many tanks in homes and businesses. This fish possess a very unusual look; some people have even called it the “unicorn fish.” Its unique appearance is due to the black and white stripes on its body. These stripes are not random but are arranged in a beautiful pattern.

The Zebra Pleco is a cross between a pleco and a zebra fish. It was named after the distinctive markings on its body. While the Zebra Pleco is a new addition to the aquarium community, it is worth adding to your collection.

Like all fish, the Zebra Pleco requires a healthy diet and plenty of tank space to roam. If you’re interested in adding this beautiful fish to your tank, research its needs first to provide the best possible care.

Lifespan

Zebra Plecos are endangered species and one of the longest-living fish in the aquarium hobby. They can live for up to six years; some have even lived longer than ten.

However, their lifespan is not guaranteed, and they may die for various reasons, including disease, poor water quality, and overfeeding.

If you’re considering buying a Zebra Pleco, be sure to consider the lifespan and rarity so you can decide whether or not it is the right pet for you.

Average size

The average size of Zebra Pleco is about 4 inches. They are small but mighty fish known for their unique stripes. These little fish are native to Brazil and are prevalent in the aquarium trade. Zebra Plecos are hardy fish that can adapt to a wide range of water conditions.

Care

Zebra Plecos are a peaceful and hardy species that make an excellent addition to any freshwater aquarium. They are easy to care for and can live peacefully with other fish, making them a perfect choice for beginners.

While Zebra Plecos are not particularly difficult to manage, there are a few things to keep in mind to ensure their health and wellbeing:

1. They should be kept in an aquarium with plenty of hiding places and areas of low water flow. This will provide them with the stress-free environment they need to thrive.
2. Although Zebra Plecos are not picky eaters, giving them a varied diet that includes both plant matter and meaty foods is essential.
3. Regular water changes are crucial in keeping the water quality high and preventing the build-up of toxins that can harm these sensitive fish.

Aquarium Setup

The Zebra Pleco is a peaceful bottom-dwelling fish from South America’s rivers. They are nocturnal by nature and prefer to live in dimly lit aquariums with plenty of hiding places. A well-oxygenated water column is also necessary as this species is known to be a strong swimmer.

In the wild, they feed off algae, small crustaceans, and detritus, so it’s essential to provide them with a diet that mimics their natural diet as much as possible.

When setting up an aquarium for a Zebra Pleco, it’s necessary to include plenty of hiding places and cover. Driftwood and rocks can create hiding spots and provide some surface area for algae growth.

A good rule of thumb is to select plants that are native to South America or have been proven safe for use in aquariums. The size of your aquarium will depend on how many fish you want to keep. Still, a general guideline is 20 gallons per fish if you plan on keeping a school of Zebra Plecos.

Tank size

The tank size for zebra plecos should be at least 30 gallons, but 50 gallons or more is ideal. They need plenty of hiding places and areas to graze on algae. Driftwood and rocks can be used to create these spaces. Zebra plecos are peaceful fish but may fight with each other if they feel threatened. 

Water Parameters

The ideal water parameters for keeping zebra plecos are:

PH of 6.8-7.2

Water hardness of 4-12 GH

The temperature of 72-79 degrees Fahrenheit

However, these fish are very adaptable and can survive in various conditions.

Filtration and Aeration

Aquariums for zebra plecos should have plenty of filtration and aeration. Filtration is essential to remove waste and keep the water clean. At the same time, aeration helps to keep the water oxygenated and circulating. A sound filter system will help to maintain water quality and prevent ammonia and nitrite build-up. 

Aquarium Filtration System

Many different types of aquarium filters are available on the market, but not all of them are suitable for zebra plecos. Canister filters are a good option, as they offer high flow rates and efficient filtration.

Hang-on-back (HOB) filters are also a good choice, as they are easy to install and maintain. Power filters can be used, but ensure the flow rate is not too strong for your fish. 

Aeration is also essential for zebra plecos, as it helps to keep the water oxygenated and circulating. Air pumps can create surface agitation and circulation in the aquarium as they come from slow-moving wild waters. A small air pump will provide adequate aeration for your tank.

Lighting

Since Zebra Plecos are a nocturnal species, they do best with subdued lighting that won’t disturb their natural sleep/wake cycle.

A moderate to low level of light is ideal. You can achieve this by using fluorescent bulbs or LEDs designed for aquariums. Be sure to position the lights so they don’t create too much glare or reflection in the tank, as this can cause stress for the fish.

Aquatic Plants and Decoration

Zebra plecos are a peaceful and relatively small species of aquarium fish originating from South America’s rivers. They are famous to many aquarists because of their unique patterning and uncomplicated care requirements. Zebras Plecos prefer to live in well-oxygenated tanks with plenty of hiding places and a moderate water flow. 

Plants can be essential in providing oxygenation and shelter for Zebra Plecos. Be sure to include plenty of aquatic plants in your tank setup. Here are a few good picks that are excellent choices for a Zebra Pleco

• Anubias
• Java Ferns
• Hornwort

When decorating your Zebra Pleco tank, try to mimic their natural habitat as much as possible. 

Use smooth rocks and driftwood to create hiding places and caves for your fish to explore. Be sure to leave plenty of open swimming space, too, as Zebra Plecos are active swimmers. You can also add some live plants or floating decorations to help diffuser the light and provide additional hiding spots for your fish.

Tank maintenance 

Zebra Pleco tank maintenance is not complex, but there are a few things to keep in mind. The biggest thing is to ensure the tank has plenty of hiding places and cover.

Zebra Plecos are shy fish and need somewhere to retreat when they feel threatened. Driftwood, rocks, and plants all make good hiding places. Another critical aspect of Zebra Pleco care is diet.

These fish are omnivores, so they need a variety of meaty and plant-based foods. A good quality pellet food or flakes with freeze-dried bloodworms, brine shrimp, or other meaty foods as a supplement will provide them with the nutrients they need.

Be sure to feed them small meals several times a day rather than one large meal; this will help prevent obesity and health problems.

Last but not least, water quality is crucial for Zebra Plecos (and all fish!). Regular water changes are essential to keeping the tank clean and high water quality. Suppose you have trouble getting your pleco to eat algae off rocks or glass. In that case, you can supplement their diet with blanched vegetables like zucchini or cucumber.

Substrates

Many different types of substrates can be used for Zebra Plecos, but some of the most popular choices include gravel, sand, and rocks. Each type of substrate has its benefits and drawbacks, so choosing the right one for your fish is essential. 

Gravel is a popular choice because it’s easy to clean and maintain. However, it can be sharp and abrasive, harming your fish’s delicate skin. Sand is another popular choice because it’s softer than gravel, but it can be challenging to keep clean. 

Rocks are a great option if you want a natural look for your aquarium, but they can be heavy and difficult to move around.

Tank Mates

One of the best things about community tanks is that you can choose from a wide variety of zebra pleco tank mates. This allows you to create a unique and exciting aquarium for your personal preferences. 

When selecting zebra pleco tank mates, it is essential to consider each fish species’ size, temperament, and diet. Some famous zebra pleco tank mates include Angelfish, Corydoras Catfish, Dwarf Gourami, Guppies, Neon Tetras, Platies, and Swordtails. Each of these fish species is peaceful and makes excellent additions to any community tank. 

Here are some other good tank mates for Zebra plecos.

• Cardinal Tetra
• Harlequin Rasbora
• Phantom Tetra (the Black Phantom is our favorite)
• Apistogramma
• Denison Barbs
• Certain Guppies
• Cherry Shrimp
• Other plecos
• Discus fish

It is important to remember that when choosing zebra pleco tank mates, it is best to avoid aggressive or territorial fish species. These types of fish can cause problems in the aquarium and make it difficult for the zebra plecos to thrive.

Breeding

Breeding zebra plecos are not overly complicated but requires some planning and preparation. The first step is to choose a healthy male and a female. These fish should be well-fed and in good physical condition.

Next, you will need to set up a breeding tank. This tank should have smooth, dark gravel or sand as a substrate and plenty of hiding places such as caves or rocks. The water should be clean and well-aerated with a pH between 6.5 and 7.5. 

Once the breeding tank is set up, you can introduce the male and female plecos. It is best to do this at night when the fish are more active. The male will chase the female around until she agrees to mate with him.

After mating, the female will lay her eggs on a smooth surface such as a cave wall or rock. The male will then fertilize them. The fry (baby fish) will hatch after about ten days.

If you want a more in-depth walkthrough, check out the video by AquaMalik above.

Setting up a separate tank for breeding

A Zebra Pleco breeding tank should have plenty of hiding places and a sound filtration system. The water should be well-oxygenated and slightly acidic, with a temperature between 75-82 degrees Fahrenheit. 

To encourage breeding, you can add some live plants to the tank or offer frozen bloodworms as treats. Once the female is ready to lay her eggs, she will attach them to a smooth surface such as a rock or piece of driftwood. The male will then fertilize the eggs and guard them until they hatch. It usually takes around 10-14 days for the eggs to hatch, at which point the fry will start to look for food on its own. 

You can feed them small live foods or specially formulated food until they are big enough to eat regular-sized pellets or flakes. Your Zebra Plecos should thrive and breed successfully for many years with proper care.

Food and Diet

The diet of the zebra pleco in the wild consists mainly of algae, small insects, and other tiny invertebrates that they scavenge from the bottom of their habitat. In captivity, zebras plecos can be fed various foods, including pellets, flakes, and live or frozen food such as bloodworms or brine shrimp. The fry can be fed on infusoria or baby brine shrimp.

They should have a diet that contains some plant matter to ensure they get enough fiber; cucumbers, zucchini, and blanched spinach are all excellent choices. It’s essential to offer them a variety of foods to keep them interested and to ensure they’re getting all the nutrients they need.

How often should you feed Them?

Zebra Pleco should be fed twice daily, once in the morning and once at night.

FAQs

Final Thoughts

Sometimes choosing fish for your aquarium may seem impossible. In this section we will talk about an aquatic animal, zebra pleco.

It’s a kind of catfish with a rather distinct appearance that adds beauty to your aquariums. They don’t usually make it to a pet aquarium as they have a distinctive look. This lovely fish can be easily maintained and has an interesting appearance.

Although this is one fish that prefers to stay quiet while swimming in its tank and exploring its surroundings you will soon become fascinated by its overall look and behavior. These fish are also beautiful, with their bright colors and patterns. If you are looking for a pleco that is beautiful and easy to care for, the Zebra Pleco is an excellent choice!

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📘 Want to learn more? This article is part of our complete Freshwater Fish Guide — your ultimate resource for freshwater species, care tips, tank setup, and more.

Arowanas are the kind of fish that make people stop and stare at a tank. I’ve seen them in person at Aquashella and Reefapalooza and they genuinely command attention in a way few other freshwater fish do. But I also want to be upfront: they’re not a fish you buy on impulse. They need enormous tanks as adults, they’re skilled jumpers, and silver arowanas in particular get sold as small juveniles without buyers understanding what they’re signing up for. If you go in with realistic expectations, though, they’re extraordinary animals to keep.

Arowana are one of the most impressive fish you can keep in a home aquarium — and one of the most demanding. Silver arowanas in particular are sold as juveniles that look completely manageable, but they routinely reach 3–4 feet and need a tank well over 200 gallons as adults. I’m always honest with people asking about these: they’re a long-term commitment that requires serious space and a serious filtration setup. Asian arowana varieties are CITES-protected and illegal to import to the US without special documentation, so most American hobbyists are working with Silver or Black arowanas. Here’s the full breakdown on what they actually need.

An Overview

Scientific Name	Scleropages formosus
Common Names	Asian bony tongue, dragon fish, bony tongued fish, monkey fish
Family	Osteoglossinae
Origin	Amazon drainage system and the western Orinoco, Rupununi, and Essequibo systems of the Guianas.
Diet	Carnivore
Care Level	Advanced
Activity	Active
Lifespan	10 to 15 years
Temperament	Aggressive
Tank Level	Middle and top Dweller
Minimum Tank Size	8 feet long tank, 250 gallons
Temperature Range	75 F° to 82 F°
Water Hardness	10 – 20DH
pH Range	6.5 to 7.5
Filtration/Water Flow	Slow-moving water
Water Type	Freshwater
Breeding	Egg layer
Difficulty to Breed	Difficult
Compatibility	Aggressive Tanks or Solo
OK, for Planted Tanks?	Yes

What is it?

Arowana is a type of freshwater fish native to South America. They are also known as bony tongue fish or dragon fish. Arowana fish are popular in the aquarium trade for their unique appearance. They can grow to over three feet long and have long, slender bodies with scales resembling armor. Arowana fish are predators, and their diet consists mainly of small mammals, reptiles, and other fish. 

Arowanas are predatory fish that have giant mouths with sharp teeth. They are considered good luck in many cultures and are often kept as pets. They are known for jumping out of the water and catching prey in the wild. Arowanas are also used in Chinese medicine. There are many different species of Arowana fish. The most common ones kept as pets are the Asian Arowana (not legal in the US), Australian Arowana, and African Arowana. These fish can grow quite large, so they must have plenty of space in their tank. 

Types of them (Osteoglossum Bicirrhosum)

Here are the different types of Silver Arowana fish.

The Silver type

The silver Arowana is native to Australia and is one of the most popular types of Arowana.

The Australian type

The Australian arowana is also quite popular in various parts of Australia.

The Black type (Osteglossum ferreiral)

The black Arowana is native to Africa and is considered one of the rarest types of Arowana. The Black Arowana fish love to feast on live fish, large insects, spiders, Tubifex worms, pellets, and flakes.

The African (Heterotis niloticus)

The African Arowana is also quite rare and can be found in various parts of Africa.

The Southern Saratoga (Scleropages leichardti)

The southern saratoga is located in South America and is one of the less common types of Arowana.

Each type of Arowana has its distinct coloration and patterns, making them all highly sought-after by aquarium enthusiasts.

Origin Of This Fish species

Arowana fish are tropical fish that are believed to have originated in the Amazon rainforest. The Arowana is freshwater fish native to South America and can be found in Brazil, Guyana, Peru, and Venezuela. Their common name derives from the Old Tupi word for “silverfish.” Arowana is a predatory fish that mainly eats other fish. They have long bodies and giant mouths and can grow up to 1 m (3 ft) in length.

Habitat 

Arowanas inhabit slow-moving waters in rivers and lakes, often near the surface, where they can gulp down insects and small mammals. Arowanas are also known as “bony tongues” because of their long, bony tongues. Arowanas prefer slow-moving waters and can often be found near the surface of rivers and streams. They are carnivores and eat smaller fish, insects, and crustaceans.

Arowanas are also known for their unique ability to “jump” out of the water to catch prey (see the video above from Nat Geo Wild). Due to their beauty and rarity, Arowanas have become a popular choice for aquariums. However, they can be challenging to care for due to their large size and specialized diet requirements.

Habitats In The Wild

Osteoglossidae family members are commonly found across most continental areas, including Australia. Probably due to an old fish species. In the Jurassic Period Arowana’s predecessors lived in Gondwana, the supercontinent, which has divided into several continents over the course of the Earth’s history. 

The fish originates in the southern hemisphere and includes the amazon rivers Rupununis, Orinoco, and Essequibo.

Appearance 

The appearance of the Arowana fish can be pretty variable. Most Arowana has long and slender bodies with ample heads and mouths. They are covered in large, shiny scales, which may be green, blue, red, or silver. They have long, flowing fins and a protruding lower jaw. Arowanas use their powerful jaws to snatch up prey whole.

Many aquarium enthusiasts prize Arowanas due to their unique appearance and interesting behavior. These fish can be aggressive towards other tank mates, so they should be kept with caution. Some species of Arowana can grow to over three feet in length. Arowana is native to the tropical waters of South America and Asia.

In the wild, they inhabit slow-moving rivers and lakes. Some species of Arowana are also found in brackish water habitats, such as estuaries and mangrove swamps.

Lifespan

Arowana fish have a lifespan of up to 15 years in captivity, though their life expectancy in the wild is unknown. These fish grow relatively slowly, reaching a maximum length of around three feet.

Average size 

Arowana fish typically grow to be about 2-3 feet long. However, some Arowana species can grow up to 4 feet in length. The average weight of an Arowana is around 10 pounds, but some individuals can weigh up to 15 pounds or more. 

Arowana Care

Arowanas are relatively easy to care for, but there are a few things you will need to keep in mind. First, they need an aquarium 8 feet long and at least 250 gallons to house a full-grown adult. You will need an even larger aquarium and more if you plan on keeping multiple Arowanas!

Second, they must have plenty of hiding places and cover in their tank because these fish like to hide, so plants or rocks can be used to create some hiding spots. Some aquarists opt for dark backgrounds with tanks to give the large Arowanas piece of mind. It is also essential to have good filtration in the tank as these fish produce a lot of waste. Arowanas are shy fish and will stress easily if they do not feel safe.

Finally, Arowanas are messy eaters, so you must do regular water changes and frequently clean your filter. Arowanas are carnivores and require a diet of live or frozen food, such as insects, shrimp, and crickets. These fish should be fed 2-3 times per day, and it is best to provide them with small amounts at once.

Overfeeding can lead to health problems such as obesity and swim bladder disease.

Tank Setup

The Arowana fish is one of the most popular fish in the aquarium trade. They are native to South America and have a rapid growth rate. Arowanas are carnivorous and need a diet primarily consisting of live food, such as insects, small mammals, and other fish.

Setting up an aquarium for an Arowana fish requires some specific considerations. First, you will need an aquarium of at least eight feet because they can grow quite large. Second, arowanas are carnivores and will require a diet that consists primarily of live food.

Therefore, you will need to set up your Silver Arowana tank with plenty of hiding places where live food can be found so your Arowana can hunt them down. Arowanas are also tropical fish, which makes their ideal temperature in the range of 76 and 82 degrees Fahrenheit. Due to their large size, it’s recommended you either have a canister filter with an inline heater or opt for titanium heaters, which are designed to handle the abuse of large fish.

Arowanas are native to slow-moving rivers and flooded forests in Asia, so their tanks should be set up accordingly. Include plenty of hiding places among driftwood, rocks, and plants.

Ideal Tank Size

The average Arowana fish will need at least an 8-foot-long tank. However, the bigger the Silver Arowana tank, the better. If you’re planning on keeping more than one Arowana fish, you’ll need to increase the size of your tank accordingly. Arowana fish are active swimmers and will require plenty of space to move around.

Water Parameters

The ideal water parameters for keeping Arowana are:

• pH range 6.5-7.5
• Water hardness: 10-20DH
• Water temperature: 75-82F 

These fish are also susceptible to changes in water quality and are hard on a bioload. Regular testing and maintenance of the aquarium are necessary.

Filtration And Aeration

Filtration is essential in keeping your Arowana healthy and free from harmful toxins. A large filtration system will remove debris, waste, and other unwanted particles from the water. This will help to keep the water clean and clear and also help to improve the quality of the air within the tank.

Aeration is also an essential part of fish care. Aeration helps to keep dissolved oxygen levels high in the water, which is necessary for fish health. It also helps to circulate the water within the tank, which can improve overall water quality. Both factors are essential for keeping your Arowana fish healthy and happy. It helps to keep the water oxygenated and fresh, which is necessary for the health of your fish.

These fish require monster filters. Consider either an aquarium sump or specialized canister filter like a Fluval FX series when attempting to keep these fish.

Lighting

They are known for their bright colors and long bodies. When it comes to lighting for arowana fish, there are a few things you need to take into consideration. 

The first is the color of the light. Arowanas are very sensitive to light, so you want to ensure the light you choose is not too bright or too dim. You also want to make sure the light does not have any blue or green in it, as this can be harmful to their eyes.

The second thing you need to consider is the intensity of the light. Arowanas like moderate lighting, so you don’t want to go too overboard with it. Too much light can stress them out and cause them health problems.

Finally, you need to think about how long the light should be on each day. Arowanas need 12–14 hours of daylight each day, so you will need to find a light that provides this amount of time without being too harsh on their eyes. An aquarium background will also enhance the look of Arowana and provide comfort to your fish. A dark background is preferable for them.

Aquatic Plants and Decoration

Aquatic plants are difficult to choose for Arowanas. Given their size, they can uproot or knock down many types of plants. Consider picking plants that can be attached to rocks or driftwood, like Anubias.

Floating plants may not be the best choice for Arowanas as they like to eat from the surface and will jump out of the tank to get food. While it can lessen the light intensity, it’s best to avoid floating plants in general.

For rocks, a good option would be lava rocks since they can house bacteria and help with filtration in the aquarium. Large pieces of driftwood can also be used to decorate the aquarium. However, Arowana purists often opt for a bare-bottom, large aquarium with a dark background when choosing to house these fish.

Tank Maintenance

One of the most important things to remember when caring for Silver Arowanas is to maintain a clean tank. Arowanas are sensitive to water quality and can develop health problems if their tank is not maintained correctly.

Remove all the decorations and gravel to clean your Arowana’s tank. Rinse the decorations and gravel with fresh water to remove dirt or debris. Then, scrub the inside of the tank with mild detergent to remove any algae or buildup.

Rinse the tank thoroughly with fresh water before adding the decorations and gravel. It’s essential to do regular water changes and keep an eye on your filtration system to ensure it’s working correctly.

If you’re considering getting an Arowana fish, be prepared to take the time and effort to care for it properly. With proper tank maintenance and a nutritious diet, your Arowana will thrive and bring you years of enjoyment. 

Substrate

The substrate you choose for your Arowana fish is important not only for the health of your fish but also for the aesthetic appeal of your aquarium. There are many different types of substrates available on the market, so it is important to do some research to find the one that is best suited for your Arowana fish.

One type of substrate that is often used in Arowana tanks is sand. Sand provides a natural look and feel to the aquarium and can help maintain water quality. However, sand can be difficult to clean and may need to be replaced more frequently than other substrates. Gravel is another popular option for Arowana tanks. 

Gravel comes in a variety of colors and sizes, so you can create an appealing aquascape. Gravel is also easy to clean and does not need to be replaced as often as sand. If you are looking for a low-maintenance substrate option, consider using artificial plants or rocks. 

These options are easy to care for and will not impact water quality. Artificial plants and rocks can also provide hiding places for your Arowana fish, which can help reduce stress levels.

Fish Tank Mates

Arowanas are beautiful and unique but not good community fish. They make lovely additions to any aquarium. While they can be kept alone, many aquarists choose to keep them with other fish. 

When selecting suitable tank mates for your Arowana, it is essential to consider the size and temperament of the fish. Arowanas are predatory fish and can reach lengths of up to three feet, so they should not be kept with smaller fish that they may view as potential prey.

It is also important to avoid keeping very aggressive fish with your Arowana, as they may stress the fish out or even injure them. Some good tank mates for arowanas include other large, milder-mannered fish like Oscarfish and the Plecostomus catfish. 

These fish are all similar in size to arowanas and have mellow personalities that won’t bother them. Other possible tank mates include certain species of turtles like Fly River Turtles, which can help keep the tank clean but should not be housed with arowanas long-term since they will eventually outgrow their quarters.

All of these fish get along because they share similar habitats and have comparable sizes. They also have high levels of compatibility regarding aggression and feeding habits. If you want to keep your Arowana happy and healthy, include at least one or two of these community mates in their tank. If you’re looking for something different, some people have even had success keeping arowanas with freshwater rays. 

Breeding

Arowana fish are oviparous, meaning they lay eggs. The female will lay anywhere from 20 to 100 eggs at a time, and the male will fertilize them. Once the eggs are laid, the parents will generally abandon them. The eggs will hatch anywhere from 6 to 10 days later, and the fry will be free swimming soon after that. Once the eggs have hatched, the fry (baby fish) must be removed from the main tank as their parents will eat them.

The fry can be raised in a separate tank and should be fed on live foods such as brine shrimp or bloodworms. As they grow, the Arowanas should be moved into progressively larger tanks until they reach adulthood, at which point they can be moved into a final display tank. 

Arowanas can be bred in captivity, and many different strains have been developed. Some of the more popular strains include the green Arowana, blue Arowana, and red Arowana.

Arowanas are relatively easy to breed if you have a large enough tank and good water quality. They are not picky eaters and will readily accept most types of food. 

Setting Up A Separate Breeding Tank For Them

Arowana fish are beautiful and majestic creatures that can make great additions to any home aquarium. 

However, these fish can also be quite difficult to breed in captivity. Suppose you’re interested in breeding Arowana fish. In that case, it’s essential to set up a separate breeding tank to meet these fish’s specific needs.

• When setting up a breeding tank for Arowana fish, choosing a size that will be large enough to accommodate the adult fish is essential.
• These fish can grow quite large, so you’ll need a tank that is at least 100 gallons in size. 
• You’ll also need to ensure the tank has plenty of hiding places and caves for the Arowana fry to hide in when they are born.
• It’s essential to maintain high water quality in the breeding tank, as Arowana fry are very sensitive to changes in water quality.
• Be sure to do regular water changes and carefully monitor ammonia and nitrite levels.
• It’s also a good idea to provide plenty of live food for the fry, as they will have difficulty feeding on dry pellets or flakes. 

With proper care and attention, breeding Arowana fish in captivity can be a rewarding experience. 

By having a dedicated breeding tank, you can control the environment more efficiently and ensure the water temperature is high enough for the arowana to breed successfully. In addition, having a separate breeding tank allows you to keep an eye on the Arowana fry without worrying about them being eaten by other fish in the tank.

Food and Diet

Arowana fish are carnivores and will eat just about anything that fits in their mouths. In the wild, their diet consists of small mammals, birds, reptiles, and insects. 

They have even been known to eat smaller arowana fish. In captivity, they can be fed a variety of foods, including pellets, live food, and frozen food. It is important to supplement their diet with live food as well, such as worms or crickets, to ensure that they get all the nutrients they need. 

Arowana fish are generally not picky eaters, but there are a few things you should keep in mind when feeding them. First of all, their diet should be high in protein as this is what helps them grow and stay healthy. Secondly, you should avoid giving them too much fat, as this can lead to health problems such as obesity. 

It is important to remember that arowanas must always be offered food that is appropriate for their size; offering too large of a food item can result in serious injury or even death. Lastly, make sure they always have access to clean water, as they need it to stay hydrated. 

How Often Should You Feed Them?

Arowana fish should be fed once or twice a day, depending on their size and appetite. It is important to not overfeed them, as this can lead to health problems.

FAQs

Final Thoughts

Whew, went through a lot of information today 😅. Thank you for sticking around until the end. Have you kept these fish before? Share your thoughts in the comments below. I love starting a conversation with my readers. We can all learn from each other and become better aquarists for it. Thank you for stopping by, and see you next time when we post new content.

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📘 Want to learn more? This article is part of our complete Freshwater Fish Guide — your ultimate resource for freshwater species, care tips, tank setup, and more.

Archer fish are one of those species I always recommend people see in person before they dismiss them — the hunting behavior alone makes them worth keeping. I’ve watched them spit water with precision to knock insects off overhanging plants, and it never gets old. They’re brackish water fish, which puts some people off, but their care is straightforward once you understand their water requirements. Here’s what I’ve learned about keeping them successfully.

If you’ve ever watched an archer fish hunt — spitting a precise jet of water to knock insects off branches above the surface — it’s genuinely one of the most impressive behaviors in the fish world. I’ve been fascinated by them for years. The most important thing to clarify upfront: archer fish are brackish water fish, not freshwater. That’s the single biggest mistake I see in both care guides and fish store labels. They may tolerate low salinity early on, but they need proper brackish conditions to truly thrive long-term. Here’s everything you need to set them up correctly.

An Overview

Scientific Name	Toxotes Jaculatrix
Common Names	Banded Archerfish, Small Scale Fish, Spinner Fish, Shooting Fish
Family	Toxotidae
Origin	Australia, Philippines, Thailand, India, Polynesia, Indo Pacific
Diet	Omnivore
Care Level	Moderate
Activity	Active
Lifespan	5 to 10 years
Temperament	Peaceful but territorial
Tank Level	Top
Minimum Tank Size	55 gallons
Temperature Range	77 to 85°F (25-31°C)
Water Hardness	10 to 30 KH
pH Range	6.0 to 7.5
Filtration/Water Flow	Moderate
Water Type	Brackish
Breeding	Egg Layer
Difficulty to Breed	Hard
Compatibility	Brackish water tanks
OK, for Planted Tanks?	Yes

What Is It?

Archer fish (t jaculatrix) are little hunters that never run out of mischief when it comes to insects.

They are scientifically known as Toxotes Jaculator and commonly go with the names Spinner fish and Small Scale fish. They are a part of the Toxotidae family from the order Perciformes.

They usually stay calm around other fish. But it doesn’t take them long to show territorial aggression around fish of their own kind.

If you’re a beginner or someone who knows their way around different types of fish, they are a perfect fit for you in either case.

Origin and Habitat

Archer Fish is a famous inhabitant of clean water and marine water of India, Thailand, Polynesia, Australia, and the Philippines. They were first discovered in 1816 by the English botanist and zoologist George Kearsley Shaw.

In the wild, these fish scatter around darker areas covered with thick vegetation that hangs above the surface. This helps them gun down their potential prey through their wonderful skills.

The archerfish species doesn’t restrict their habitats to one place as they tend to hang out toward the open sea. Some of these species thrive in freshwater while others have weak tolerance for it.

Another reason they don’t swim their way to freshwater lands is the difficulty in chasing down insects. Mangrove swamps allow them to operate without compromising on water parameters and creating too much momentum.

Appearance

The Archer Fish looks somewhat subdued when it comes to physical traits. But despite not featuring mesmerizing colors, they are still beautiful and unique in their own way.

They have an elongated body that looks somewhat compressed, giving the fish a thin appearance. The pointed face of the Archer fish adds up to their compressed look even further. This narrow profile helps them shoot down any floating insect almost seamlessly.

Their eyes are more enhanced when compared to most fish species in and beyond the aquarium domain. This binocular vision fits perfectly for the role of giving them access to clearer focus. It also helps them gauge longer distances between them and their prey.

One of the unique traits of Banded Archer fish is the movement of their mouths while hunting. They turn their mouth in a way that helps the tongue go above the surface and gun down insects. While their mouths work, the activity doesn’t disturb the momentum of their body.

Unlike most fish species, they have their dorsal fin and anal fin sitting on the far back of the body with the tail appearing beautifully rounded.

They feature lemon, aquamarine, and slightly brown backs. Their sides take on a subdued gray to a silver color.

Coming to bands, these fish trade different bands based on their species. They feature a silver-colored base with golden hues visible across the body and offer 6 vertical stripes. These bands travel from one side of their body to the other.

The first bar runs across the eye with the last going right before the well-rounded tail. The last stripe goes to the back end of their dorsal and anal fins, giving them their name Archer Fish.

Lifespan

The average life cycle of the Banded Archer fish is around 5 to 10 years in captivity.

If you want to see them living a long life, you have to take care of what goes and stays with them in their tank, what foods they prefer and what parameters are ideal for their healthy survival.

Average Size

The Archer fish can stretch themselves up to 12 inches in the wild. As for captive-bred fish, they find it somewhat demanding to grow as big as the fish living in the wild.

Care

Environmental transitions can stress out any fish. And while you are eager to bring your favorite species to your home aquarium, you can’t overlook factors that contribute to conditioning them for the change. Archer fish care is pretty easy. If you are a beginner at fish keeping, you can still create ideal environment conditions for them to thrive.

Archer fish can put up with freshwater and marine water. It is primarily based on their species. But for most Archer fish, the absence of salt can be a challenging thing.

Another thing that has intrinsic value to their overall wellness is plant life. You have to supplement their tank with thick vegetation that they can use both for high oxygenated water and as an aid for hunting. Apart from this, choosing the right tank mates and a suitable tank also help them stay upbeat.

Aquarium Setup

Archer fish spend most of their time around the surface of the water. This makes their hunting easier and more precise.

Choosing the right type of aquarium is an important factor in their overall stability. You need to get a taller tank for a group of Archer fish. Make sure you give them plenty of space above the surface of the water so they can habitually jump at their prey.

You can go for a paludarium aquarium that looks like an enclosed space. It can help you give them active underwater life. And at the same time, it should give way for plants to grow above the surface.

Don’t forget to secure it with a tank lid. While chasing their prey, they are very likely to jump out of the tank which can result in serious injuries.

Tank Size

Archer fish are large though they don’t move around too often.

But given their size, you should get a minimum of 55 gallons for a single fish. Depending on their number, plants, and tank mates, the size can go up. For example, if you have a group of 5-6 Archer fish, get a 115-gallon tank.

Water Parameters

Banded Archer fish are not freshwater fish species. In fact, while setting up their tank, you have to fill two-thirds of the aquarium with brackish water.

Brackish water basically means a combination of clean water and salt water. Failing to meet these criteria can significantly shorten their lifespan.

Make sure you don’t go beyond the recommended range of these parameters:

• Water temperature: 77 F° to 88 F°
• pH levels: 7.0 to 8.0
• Water hardness: 10 to 30 KH
• Brackish water NaCl: 0.5 to 30 g/l

Pro Tip: To get the ideal high water salinity, add 10-12 teaspoons of salt to every 100 gallons of water.

Filtration and Aeration

To maintain a healthy aquarium environment, you need a strong filtration system for your pet. To filter their aquarium thoroughly, get at least a hang on the back filter. Canister filters or sumps are ideal for aquariums that contain salt water.

Lighting

Since the fish swims on top water levels in their natural habitat, they can adjust themselves to bright lighting.

You can keep the lights dim throughout night hours though. But make sure the aquarium gets moderate exposure to sunlight so the plants can grow.

Aquatic Plants and Decorations

For clean water tanks, you have plenty of options to choose from since the plants can grow and give a well-oxygenated environment to the fish. But in this situation, you have to be careful. Not all plants can resist stronger salt concentrations.

As for caves, you don’t need to create or buy any caves because the fish stay around top water areas. As a good alternative to caves, plants that grow above the water’s surface can work.

Here’s a list of some of the best aquarium plants you can introduce to your aquarium. These plants can easily grow in brackish tanks.

• Anubias
• Java Fern
• Sagittaria
• Sea Grass
• Sogo Pondweed
• Anacharis
• Sea Lettuce
• Vallisneria

Make sure whatever plant you go for, should have overhanging leaves. It will help the fish while hunting down their live food.

Tank Maintenance

Tank maintenance can be slightly tough due to plants and water setup. But if you want your fish to live happily, you should clean the tank every now and again.

Start with cleaning the tank walls. Don’t forget the top section since they inhabit the top levels. Trimming the plants is also good to control their growth. You should also focus on tank corners for dust and debris.

Substrate

A mix of gravel and sand can work perfectly well for Archer fish. They don’t travel to lower levels therefore substrate is not an issue here. You can also add some rocks that are rounded.

Community Tank Mates

Due to the complexity of water conditions, selecting ideal mates is time-consuming and pretty challenging.

You have to find them tank mates that align with their size, nature, and on top, water conditions. Although they are peaceful around other fishes, they act hostile around fish of their own kind. If you have a school of Banded Archer fish, you should get another school of fish from a different kind.

They are designed to target any insect. If not insects, they can eat smaller fish.

You can pair up your fish with these fish:

1. Knight Gobies
2. Puffers
3. Scats
4. Monos
5. Mollies
6. Mudskippers
7. Four eye fish
8. Swordtails
9. Clown Loaches

Clown Loaches can get along with them if you put the loaches on the low-end saltwater side. The others are also good and larger fish to group with them.

Poor Tank Mates

Any smaller fish or fish that is too large will be a bad choice. Also, make sure you don’t add freshwater fish to your list that don’t do well in higher salinity environments.

Breeding Banded Type

When it comes to breeding them in captivity, they are one of the hardest fish you will ever come across. You can’t tell their genders apart because they are not sexually dimorphic. Another reason is weak information on what conditions them to breed in their natural habitat.

These peaceful fish take at least a year to become sexually mature. In their native homes, they are known to breed once the wet season begins. They don’t spawn where they live. Rather, they retreat to saltwater reefs for spawning.

In a single spawning, the female lays up to 20,000 eggs, making it impossible to monitor in home aquariums. The eggs float on the water surface and within 12 hours get hatched.

Newly hatched fry are too small, only a few centimeters long. The fry doesn’t need to be around the father or the mother fish as they can survive on their own.

In their native towns, the fry feed on small insects. The interesting thing about Archerfish’s fry is the juveniles develop shooting abilities way before becoming mature.

Food and Diet

Archer fish are not picky eaters. Sometimes, they just need to practice their natural instincts of attacking to get happy.

As omnivorous and eager opportunists, they rely on their strength of capturing insects, bugs, flies, or whatever crosses their path.

As you already know, they remain near the surface awaiting their prey, so you need to replicate this condition. If any unlucky spider, bug, or insect sits on the leaves within the range of 5 feet, the first instinct of the fish is to shoot a stream of water at them. You can see some footage of their incredible ability from BBC below.

They do it by sucking water and placing their tongue on the top of their mouth. These streams are usually very powerful, making the insects fall directly into the water. In case the first attempt goes to waste, they shoot up to 8 jets in a single gulp of water.

They get a diverse range of diets in the wild. This helps them keep their eating habits intact. From eating smaller fish to insects that fly by, they can eat everything as long as they want.

In your home aquarium, you can get live foods such as bloodworms and earthworms. You can also feed them pellets, dried food, and frozen food. Since they stay on top, you have to get them food that doesn’t sink to the bottom until they are fully trained.

Teaching them to get sinking food is easy. All you have to do is use the tiny bits of moistened prawn. Stick these bits to the top of the aquarium. Another way to train them is to take a rod comprised of insects or bugs and place it just above the water level.

The initial practice would be like this. But with time, you would need to raise the pieces higher until they reach the surface. You will initially see them using their natural attaching methods. But with time, they will learn how to eat without doing any jumps. It will be challenging for them to do something like this though not impossible.

Apart from other live foods, you can feed them:

1. Crickets
2. Mosquitoes
3. Spiders
4. Crustaceans
5. Cockroaches

Common Health Problems

They are susceptible to some common fish diseases. Luckily, if you give them their preferred environment, warding off these ailments becomes pretty easy for them.

Ich

Ich is a common fish disease caused by parasites.

Some common symptoms are:

• Salt-like grains on gills and body
• Constant scraping of the body against sharp objects
• Abnormal hiding behavior

Fin Rot

Fin rot is another common disease that occurs usually due to bacterial infection.

Some common symptoms are:

• White outline around fin edges
• Ragged fins
• Entire fin rotting

FAQs

Where To Buy

Banded Archer fish are usually found in specialty fish stores. You usually will not find them at chain pet stores. If you cannot find a reputable local fish store around you, I would recommend you purchase from an online vendor that has a guarantee on their livestock.

Closing Thoughts

If you’re looking for an interesting, beautiful fish to add to your community tank, the Archer Fish should be at the top of your list. These larger fish have great personalities and are sure to bring a little bit of excitement to any aquarium. Keep in mind that they can be difficult to breed, so if you’re up for the challenge be prepared for some trial and error. Have you kept a Banded Archer Fish before? Let us know about your experience in the comments below!

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📘 Want to learn more? This article is part of our complete Freshwater Fish Guide — your ultimate resource for freshwater species, care tips, tank setup, and more.

Threadfin rainbowfish are one of the most stunning micro fish in the hobby, and they’re criminally underused in nano tanks. I love recommending them to planted tank keepers because those long, flowing fin extensions on the males look incredible against dense green backgrounds — but they’re also genuinely fragile fish that need calm water, gentle tankmates, and stable parameters to thrive. Get those conditions right and they’re a showstopper.

https://www.youtube.com/watch?v=UPUsF6QkUSo

The threadfin rainbowfish (Iriatherina werneri) is one of the most delicate and visually striking micro fish you can keep — those long, flowing fin extensions on the males are genuinely remarkable. They’re a true nano fish, maxing out around an inch and a half, and they need appropriately sized tank mates and calm water. I’d pair them with other micro species like chili rasboras or celestial pearl danios. The key care note most people miss: they’re not strong swimmers and do poorly with surface agitation or any significant current. Here’s the full care guide.

An Overview

Scientific Name	Iriatherina werneri
Common Names	Threadfin rainbowfish, Featherfin rainbowfish
Family	Melanotaeniidae
Origin	New Guinea, Northern Australia
Diet	Omnivore
Care Level	Moderate
Activity	Active
Lifespan	3 to 5 years
Temperament	Peaceful
Tank Level	Middle
Minimum Tank Size	20 Gallons
Temperature Range	72 to 82° F
Water Hardness	7 to 10 KH
pH Range	6.0 – 7.2
Filtration/Water Flow	Slow
Water Type	Freshwater
Breeding	Egg Scatterer
Difficulty to Breed	Moderate
Compatibility	Community tanks
OK, for Planted Tanks?	Yes

What Are They?

Threadfin rainbowfish are a special type of rainbowfish in the Melanotaeniidae family. They are scientifically known as Iriatherina werneri and are the only species within the genus Iriatherina due to slight differences in fin, ray, and teeth morphology.

As we’ll see, these freshwater rainbowfish come from very exact locations across a few counties. Depending on the environmental conditions in those ecosystems and the area of collection, threadfin rainbowfish appearance will differ between individuals. It is believed that some differences may be so great that there may be distinct species in the Northern Territory, Queensland, and New Guinea.

Origin and Habitat

Threadfin rainbowfish are not a widespread species, though they have been known to travel distances of over 300 miles. These fish are known to occur in the following locations:

• between the Maro/Merauke River and the Fly River on New Guinea’s southern coast
• Bosset Lagoon, Papua New Guinea
• Cape York Peninsula, Queensland, Australia
• Arafura swamp, Northern Territory, Australia

Threadfin rainbows are commonly found in freshwater swamps and wetlands with abundant plant life and algae growth. They are especially found on the shallow margins of these ecosystems hidden away deep in vegetation.

Interestingly, juvenile males and females make their homes in these shallows while mature males claim territories in more open water. When ready, males will approach the shore and pick a female of their liking. They will then spawn in the nearby vegetation.

Appearance

Threadfin rainbowfish don’t quite look like most rainbowfish or any other species of freshwater fish for that matter. In fact, these fish don’t even look like each other!

Threadfin rainbowfish have very specific appearances based on their area of collection. Water chemistry, like acidity, hardness, and turbidity, can all affect how colors display on any individual fish.

In general, these fish have very streamlined, torpedo-shaped bodies. They get their threadfin or featherfin common name from their very thin and elongated second dorsal fins as well as their ornate pelvic and anal fins. These fins have an extremely delicate appearance, looking like streamers that follow the flow of the fish. These fins are longer and more colorful in male threadfin rainbows, but females can have impressive ones too.

Color can vary significantly from fish to fish. Most times, the body is green or silver with yellow undertones; darker lateral stripes may sometimes be present. An even greater variation comes in their elongated fins, especially in the males. These are known to come in blues, pinks, yellows, oranges, reds, and natural tones.

Care

Threadfin rainbows are good fish for intermediate to advanced fish keepers. These fish act like normal freshwater schooling fish, but have some specific spacial and dietary needs. It should also be noted that some hobbyists only like keeping threadfin rainbows in a species-only aquarium setup.

Here’s how to make sure your threadfin rainbowfish stay happy and healthy!

Aquarium Setup

Threadfin rainbowfish enjoy aquarium setups that replicate the conditions of their natural habitat. This means slow-flowing waters, dense vegetation, a school for protection, and plenty of available food.

The ideal threadfin rainbowfish aquarium would be a long, heavily planted aquarium, including floating plants to help provide additional shelter and to diffuse high lighting. A dark gravel or sand substrate may be used to encourage fish to show brighter colors. Filtration should be efficient while water flow should be minimal. These are relatively delicate fish that won’t be able to swim against an overly harsh current.

Threadfin rainbowfish are not the hardiest species of rainbowfish or freshwater fish in general. They need a mature tank with lots of available algae and micro foods that they can pick at with their tiny mouths. They are also susceptible to incorrect and poor water quality, making regular tank maintenance and husbandry an absolute must.

Last but not least, it is imperative to keep these fish in a covered aquarium. Threadfin rainbows can easily jump several inches out of the water and you don’t want to come home to find your fish dead on the floor. Remember, jumping out of the water can also be a sign of stress or poor water quality.

Tank Size

There is some discussion as to which tank size is best for threadfin rainbows. These are small schooling fish that like to stay around the middle and top sections of the aquarium. Most other freshwater fish only need a 10 gallon to thrive, but the threadfin rainbow is a little different.

The minimum tank size recommended for a school of threadfin rainbows is a 20 gallon long aquarium. Anything smaller or shorter than this will limit your fish’s activity level, subsequently affecting other aspects of their health.

Though these fish are small, you shouldn’t be fooled into thinking they’re another nano fish. Instead, threadfin rainbows need room to swim.

Filtration and Aeration

Threadfin rainbowfish need good filtration. They can be sensitive to imperfect and wavering water parameters, so they do best in a mature setup with regular aquarium maintenance. The trick to keeping these fish happy and healthy is by having good filtration but a slow water flow.

Because of this, it’s recommended to use a hang-on-the-back filter or sponge filter that only agitates the surface of the water. A canister filter may have an overpowering return rate, though this can be lessened through valves or another DIY solution.

Additional aeration is usually not necessary as these fish are often kept with live plants that keep the aquarium water oxygenated. If keeping a large amount of fish, then it’s recommended to add an air stone.

Lighting

Threadfin rainbowfish can be kept under most lights and lighting intensities. Hobbyists have found that they prefer slightly dimmed conditions, but this doesn’t necessarily mean that the light fixture needs to be compromised.

Instead, there are ways to dim the lighting in the aquarium by using botanical tannins or keeping floating plants. Tannins allow light to penetrate the water column while also providing an immunity boost to fish. Floating plants, like floating lily pads, could cast too much shadow on the plants below, so overgrowth will need to be maintained.

Aquatic Plants and Decorations

Threadfin rainbows love a planted aquarium! They are generally bold, active fish that will feel even more encouraged to swim in the front of the aquarium if they know plenty of shelter is around.

Remember, these fish live in dense vegetation in their natural habitat and it’s best to replicate those conditions as best as possible. These plants do not need to be challenging species as threadfins will appreciate density over selection.

One of the benefits of keeping threadfin rainbows is that they’ve been known to eat some pest algae. That being said, they should never be used as a solution to algae problems.

Tank Maintenance

As mentioned before, threadfin rainbows are relatively sensitive to imperfect water conditions. If you are a new hobbyist, then other rainbowfish, like the larger Boesemani rainbowfish (Melanotaenia boesemani), might be more suitable.

To keep your threadfin rainbow happy and healthy, it’s recommended to do 25% water changes every week or every other week depending on the bioload; the aquarium filter media should also be cleaned at least once a month.

The required maintenance for a threadfin rainbowfish aquarium will vary greatly depending on the tank size and number of plants. More plants mean that more nutrients are naturally used and exported. In some cases, additional fertilizers might be necessary to keep up with nutrient demand.

Substrate

These freshwater fish can be kept on either a sand or gravel substrate, though sand is preferred in most cases. This is because their long fins can get caught in gravel, which could lead to infection. However, a fully healthy fish should be able to avoid this from happening.

A key decision to make when choosing a substrate for threadfin rainbows is color. A darker substrate can encourage these fish to show their best bright colors.

Community Tank Mates

On paper, threadfin rainbowfish are the perfect schooling species for a planted community tank. On the contrary, most hobbyists like to keep these fish in a species-only setup. Why?

The main difficulty of keeping threadfin rainbowfish is accommodating for their small mouth. Inexperienced hobbyists may not know how to keep these fish fed apart from the other species in the tank. By using some feeding techniques and picking the right tank mates, threadfin rainbowfish can easily be kept in a community setup.

Here are some of the best community tank mates for threadfin rainbowfish:

• Corydoras
• Small tetras
• Small rasboras
• Otocinclus
• Other small rainbowfish

Compatible rainbowfish species include the forktail blue-eye rainbowfish (Pseudomugil furcatus) and the dwarf neon rainbowfish (Melanotaenia praecox).

It is also important to consider that threadfin rainbowfish are schooling fish and should be kept in groups of at least 6 or more. One male should be kept for about every 3 to 4 females; males can be very incessant about spawning and multiple females will help distribute harassment. In smaller aquariums, it can be difficult to keep multiple males as they will frequently spar with each other to assert dominance.

Poor Tank mates

Poor threadfin rainbowfish tankmates are ones that are either less active or more active. A little confusing, right?

The problem is that threadfin rainbows are peaceful fish that get along with many fish, but they’re very active and can stress out more docile species. On the other hand, overly active fish can also stress out these rainbows and outcompete them when the time comes to eat.

Fin nippers like Tiger Barbs should also be avoided due to their extended fins.

Food and Diet

So how do you feed these fish with incredibly tiny mouths? By feeding the right kinds of foods with the right techniques.

These fish should be given a variety of live, freeze-dried, and frozen foods. They are active fish with a high metabolism and should be fed at least two times a day. They will enjoy brine shrimp, bloodworms, and mosquito larvae, though these foods can become expensive over time. High-quality crushed flake foods or pellet foods should be the staple of the diet.

To ensure that your fish are getting enough food, it’s important to create a routine. This includes feeding your fish at the same times and in the same areas of the tank every day.

A common way to feed sensitive fish is by feeding them their preferred foods away from the rest of the fish in the aquarium; feed rainbowfish on one side of the aquarium and all the other fish on the other side.

If you find that your fish are being outcompeted for food, then you may need to remove the more aggressive species.

Breeding

Breeding threadfin rainbowfish is pretty easy. If a male and female are present in the aquarium, then it’s likely they’ll breed on their own, especially if a spawning medium, like Java moss (Vesicularia dubyana), is available in the aquarium.

https://youtu.be/UPUsF6QkUSo

For more controlled breeding, a male fish and 3 to 4 female fish should be moved to a breeding tank. When ready, the male will display intense colors and move his fins to entice the females. When she is ready, she will lay an egg near a densely planted area or where a spawning mop is provided.

Once the eggs have been distributed and fertilized, the adults should be removed from the tank as the adults are egg scatterers and will eat their own eggs and fry. The eggs will hatch in a few days. The fry are very small and delicate and need to be given the smallest microfauna until ready to accept other prepared foods or smaller live foods like baby brine shrimp.

Where To Buy

You can buy Threadfin Rainbowfish at local specialty fish stores. General pet stores will generally not carry this fish. If you cannot find a reputable local fish store, consider purchasing the fish from an online dealer. I highly recommend purchasing from Flip Aquatics. You can use my promo code ASDFLIPPROMO for an additional discount at checkout.

FAQS

Final Thoughts

Threadfin rainbowfish have been in the aquarium hobby for a long time and are often overlooked. They are small fish with small mouths that need some consideration when it comes to feeding and nutrition. However, they readily breed and thrive in a well-planted aquarium. Subscribe to our YouTube channel if you want to see new video content or enter a comment in below and start a conversation.