Jewel cichlids are one of those fish where the name really does justice to the animal. The iridescent red and blue coloration on a healthy specimen is genuinely stunning. I’ve kept them and they’re hardy, bold fish with a lot of personality. The one thing I always emphasize: they’re aggressive, especially during breeding, and tankmate selection requires real thought or you’ll have problems.
If you’ve been researching different species of cichlids, the jewel cichlid may, quite understandably, have caught your eye. Now, despite its undeniable beauty, the jewel cichlid gets a bad rap due to its semi-aggressive temperament.
For many aquarists who wish to maintain a peaceful community tank, adding a jewel cichlid will not be worth it. However, keeping jewel cichlids is not only fun and rewarding, itโs also a great way to liven up your aquarium. Although their temperament will pose a problem to novice aquarists, the jewel cichlid is a worthwhile pet.
Wondering whether a jewel cichlid is worth putting in your home aquarium? Let our jewel cichlid care guide help you decide.
Species Overview
| Scientific Name | Hemichromis bimaculatus |
| Common Names | Jewel cichlid, jewel fish, African jewelfish |
| Family | Cichlidae |
| Origin | Africa |
| Diet | Omnivore |
| Care Level | Moderate |
| Activity | Moderately active to active |
| Lifespan | 5 – 7 years |
| Temperament | Semi-aggressive (Aggressive when breeding) |
| Tank Level | Mid to top level |
| Minimum Tank Size | 30 gallons |
| Temperature Range | 70ยฐF to 74ยฐF |
| KH | Neutral to soft; below 12 dKH |
| pH Range | 7.0 to 7.5 |
| Filtration/Water Flow | Moderate |
| Water Type | Freshwater |
| Breeding | Mouth Brooders |
| Difficulty to Breed | Easy to breed; forms breeding pairs easily |
| Compatibility | Species only or aggressive tank |
| OK, for Planted Tanks? | With Caution |
Origins and Habitat
The jewel cichlid Hemichromis bimaculatus originates in West Africa. This is where the fish inhabit richly vegetated freshwater bodies like streams, rivers, and lakes. Jewel cichlids have also been documented in some parts of North Africa.
Because these water bodies are teeming with other cichlids and don’t offer a wide variety of sustenance, they are very competitive habitats. This explains why these jewel fish are naturally aggressive and territorial.
What Does the they Look Like?

The coloration of the jewel cichlid species varies widely. You’ll find them mostly in a bright orange-tinted red with vibrant white spots (this is the blood red jewel cichlid), but many are also colored purple with contrasting greenish spots (green jewel fish).
This color will be intensified during the breeding season. During this time, you’ll also notice a longer ventral, anal, and dorsal fin. Some say that male cichlids have a brighter coloration than their female counterparts.
How Big Are They?
Jewel cichlids may vary greatly in size, from as little as 3 inches to as large as 6 inches. In an aquarium, the size of this fish will be smaller than in the wild.ย
How Long Do Hemichromis bimaculatus Live?
On average, a cichlid of this kind can be expected to live up to 5 years. If youโre able to provide superior tank conditions and provide a perfectly balanced diet, your jewelfish might even live up to 7 years. This is rare, however.ย
Temperament and Activity Level
The hemichromis bimaculatus is recognizable by its aggressive behavior. Particularly when it is stressed or underfed, a jewelfish is more likely to lash out and attack his/her tank mates. Breeding season is when the fish reaches the height of its aggression.
This will all sound very scary, but for the committed aquarist, it’s actually not that difficult to ensure a stress-free environment for this freshwater fish. As long as tank requirements are strictly maintained. The best thing to curb aggression is space and lots of shelter. If you have a small tank, with lots of fish, and no shelter, your Jewel Cichlids will be more aggressive as they fight to claim limited territory.
, your jewel cichlid fish will be seen flitting back and forth across the water. They are also very active fish who like to dig at their substrate, looking for food.
Jewel cichlids are also monogamous, which means they form a breeding pair for life. If your jewel fish are in a pair, donโt be surprised to see them together most of the time!
What are Good Tankmates?
It will seem like a bad idea to include any tank mates for your jewelfish, fin nippers as they are. Well, you should listen to your instincts. Don’t put them in a community tank. These freshwater fish are best off in a species only or cichlid tank.
Good Tank Mates
Despite their bad reputation, some jewelfish can, in fact, cohabit peacefully with certain other semi-aggressive species. Accordingly, here are some fish that will make acceptable mates for your jewelfish.
- Clown loaches
- Plecos
- Electric blue acaras
- Redtail shark
- Syndontis catfish
- Scavenger catfish
- Leopard bullfish
Jewel cichlids are one of the most aggressive fish you will ever keep relative to their size. They will terrorize tank mates, destroy aquascapes, and turn a peaceful community tank into a war zone overnight. When breeding, their aggression doubles. I have kept these for years and the number one mistake I see is people treating them like a regular community fish. They are not.
The Reality of Keeping How to Care for a Jewel Cichlid in Your Home Aquarium
The aggression reputation is earned but misunderstood. How to Care for a Jewel Cichlid in Your Home Aquarium is not randomly violent. It is territorial, and territory disputes in a poorly planned tank look like chaos.
Group size controls behavior. Keep too few and you get a bully. Keep enough and aggression spreads out. There is a threshold, and missing it ruins the tank.
Most problems are stocking problems. The fish is not the issue. The tank plan is the issue.
Biggest Mistake New How to Care for a Jewel Cichlid in Your Home Aquarium Owners Make
Keeping too few. A small group of How to Care for a Jewel Cichlid in Your Home Aquarium creates a hierarchy where the bottom fish gets destroyed. The solution is not fewer fish. It is more fish to spread aggression.
Expert Take
Stock heavily, filter aggressively, and provide sight breaks throughout the tank. How to Care for a Jewel Cichlid in Your Home Aquarium is manageable when you control the environment. Let the environment control itself and this fish exposes every weakness.
Fish Species to Avoid
When selecting home aquarium tank mates for your jewel cichlid, itโs best to avoid all fish species if you can, except a few semi-aggressive fish mentioned above.
In particular, peaceful aquarium fish species (for example, any goldfish species) should be avoided at all costs, as your jewelfish will harm them and will even eat or kill them. MBunas and Rift Lake Cichlids should be avoided as they are likely to be attacked and killed.
What Do Jewelfish Eat?
Feeding jewel cichlids is fairly easy. As omnivorous freshwater fish, jewel fish will readily eat pellets, flake food, and live food as well.
You should aim to provide as balanced a diet as possible. This means mixing and matching different food types. You can also consider giving them vegetables such as lettuce leaves and spirulina. Frozen foods are alright once a week. If feeding pellets or flakes, consider one that contains probiotics like the Cobalt Aquatics line.
With probiotics and specially formulated for Cichlids, this is bar none the best flake formula available for your Africans
What about Live Foods?
Bloodworms, white worms, tubifex, and frozen baby brine shrimp are great live foods for jewel cichlids. Limit providing live foods to once a week.
How Much and How Often to Feed
You should aim to feed your jewel cichlids at least twice a day. Be careful not to overfeed them, however, and donโt confuse their voracious eating for constant hunger.
Feeding your jewel fish properly is crucial if you want them to retain their vivid coloration.
How to Set Up Your Fish Tank
Recreating the Africa habitat or breeding conditions of the jewelfish is not too difficult. Hereโs all you need to know about how to set up the tank of your jewelfish.
Tank Size

For one pair of jewel cichlids, a tank size of at least 30 gallons is required. For each new pair, add 20 gallons. If you put them in a community aquarium (not recommended), provide a tank divider. When your Jewel Cichlids are in breeding mode, consider removing other tank mates if your tank is on the small side. They are known for taking over 30 and 40 gallon tanks!
Substrate
A sandy substrate is best for these fish as they love to dig. Anything sharper will injure them.
Decor
Decorations are a necessity when rearing jewel fish, who are territorial and love to claim their own space. Provide rocks and aim to create cave-like conditions. Rocks with holes or caves are ideal to provide shelter.
Plants
These fish are curious and active fish who love to dig. So, they will get in the way of your aquarium plants thriving unless the plants are protected by rocks and such. Floating plants and column feeders like Anubias Nana and Java Fern would be good examples of plants that could work.
Water Quality
Here are the water conditions you need to ensure for your jewel cichlids
Filtration
Provide adequate filtration for your jewel cichlids to ensure that they can enjoy a water flow mimicking the currents of the streams and rivers they’re used to. They are particularly hardy. They do well with your standard power filter.
Water Parameters
Maintain these water conditions in your home tank to ensure a healthy environment for your jewelfish.
- Water Temperature: 70ยฐF to 74ยฐF
- pH Range: 7 to 7.5
- Hardness Range: Not above 12 dGH
- Water Movement: Moderate to strong
Aquarium Maintenance
Besides ensuring the proper parameters for your cichlid aquarium, conduct regular water changes of 25% – 40%. Remember, the goal is to reduce your jewelfishโs aggression. Otherwise, their lifespan will be shortened.
How to Breed?
Breeding this species in tanks is relatively easy once you can determine their sex. As they are monogamous, cichlids form pairs quickly and easily during mating season, and once they are parents, they will stick together.
Breeding Tank
You can isolate your cichlid pair in a breeding aquarium, but itโs not necessary if you have just one pair. Gradually raise the water temperature from their regular temperature by a few degrees every day until you reach 80ยฐ to 82ยฐ F (or 26.7ยฐ – 27.8ยฐ C).
Breeding Behavior
When the male is ready, his color will become very vibrant, and he will become very aggressive. Like other cichlid species, the male will chase the female about the tank for a little bit until she lays eggs.
Once sheโs ready, the female will search for the right place to lay her eggs. She will likely settle on a flat surface, typically a flat-faced rock. She will produce up to 500 eggs.
After Breeding
Once the eggs are fertilized, they will hatch within 2 to 4 days. After hatching, the jewelfish parents will help each other move their kids to a different part of the aquarium. During this time, the parents will be excessively aggressive in order to defend their young fish.
Feeding Fry
Let the fry absorb the remainder of the egg yolk in the first few days. Afterward, feed them crushed flakes and mashed pellets. Donโt be distressed if the new parents eat some of their offspring.
Health and Disease
Your jewel cichlid is, unfortunately, prone to the illnesses most freshwater cichlids are prone to. Hereโs how to tell whether your jewelfish is healthy or needs care.
Signs of Health
A healthy jewelfish is a happy one. A happy jewelfish is playful and active (is interpreted as aggression), burrowing in the substrate or flitting about their aquarium. Most significantly, healthy jewelfish retains its vibrant coloration.
Signs of Ill Health
Here’s a list of several common issues you may come across
- When a jewelfish is highly stressed, ill, or underfed, it will very likely lose its color. This is one of the most easily seen warning signs of this fish.
- Swelling, loss of appetite, rapid breathing, and differently colored feces are all symptoms of Malawi bloat, a condition that mostly affects African cichlids.
- Notice an indentation in the head of your jewel cichlid? He/she is suffering from hexamita, also known as “hole in the head” disease.
- Look out for ich, which manifests in symptoms like lethargy, loss of appetite, and restless behavior, but most importantly, white spots on the body of the fish.
- Labored breathing and a loss of color might indicate gill flukes.
All of these conditions are covered in our freshwater fish diseases post.
Common Health Issues and Treatment
One of the easiest ways to ensure that your jewel fish is healthy is to provide the required tank parameters with care. Feed them regularly, donโt overfeed, and provide a varied diet. This will keep most illnesses at bay.
Hereโs how to deal with other diseases that will come up:
- If you think your jewelfish is suffering from Malawi bloat, act quickly. Change the tankโs water and introduce a dose of Metronidazole. However, know that Malawi bloat is a condition that quickly turns fatal, so donโt blame yourself if something goes wrong.
- Administer the same treatments for ich as you would for other cichlids: increased tank temperature, salt baths, potassium permanganate, acriflavine, and malachite green.
- If you suspect your fish is suffering from gill flukes, use Praziquantel.
Where to Buy?
Compared to other cichlid breeds, the jewelfish is a little harder to buy in brick-and-mortar pet shops. They will also be a little more expensive. If you cannot find them locally, try using an online fish store. Often times, their guarantee will be superior to what you can find locally.
Frequently Asked Questions

Are they aggressive?
Semi-aggressive, yes. Especially when theyโre in pairs and ready to breed, their aggression is strongest. Once the fry are born, jewel cichlids will defend their offspring to the best of their ability.
If you must put your jewel cichlids in with other fish, get a tank divider. Even better if you can get a separate tank entirely. And try to ensure large tanks.
What fish can go with them?
Put bluntly, it’s best not to put your jewel cichlids in with other fish. If you must, we would recommend other cichlids as tank mates, as well as certain bottom-dwelling semi-aggressive species.
Can they live with oscars?
Itโs not impossible, but itโs difficult to achieve harmony between oscars and jewel cichlids. This is not only because oscars are famously aggressive fish; they are also significantly larger than jewel fish. So unless you can provide a large tank (at least 100 gallons), itโs not recommended.
Can angelfish live with this type of fish?
Once again, itโs not recommended. Although the jewelfish and angelfish are both cichlids, the latter is somewhat more docile and therefore more prone to being harmed by your jewel fish.
Are they hard to keep?
If you want a varied and healthy community tank, jewel cichlids is more trouble than they are worth. Besides this, these fish are pretty easy to keep, with the right tank size and setup.
What It Is Actually Like Living With How to Care for a Jewel Cichlid in Your Home Aquarium
A properly stocked How to Care for a Jewel Cichlid in Your Home Aquarium tank is one of the most active, dynamic setups in the hobby. There is always something happening.
The aggression is structured, not random. Once territories are established, the tank settles into a pattern. Disrupting that pattern restarts the conflict.
Watching How to Care for a Jewel Cichlid in Your Home Aquarium interact is endlessly entertaining. These are smart fish with complex social dynamics.
What It Is Actually Like Living With Jewel Cichlid
A jewel cichlid tank is never boring. These fish are always doing something. Patrolling territory, displaying to each other, digging in the substrate, or staring you down through the glass. They have more personality per inch than most fish three times their size. You will catch yourself talking to them, and you will not feel weird about it.
The color display during breeding is the highlight. Both parents intensify to a deep, glowing red covered in iridescent blue-white spots. It looks like someone painted them. The male flares and displays while the female fans the eggs, and the entire tank seems to pulse with energy. It is one of the most visually spectacular things that happens in a freshwater aquarium.
The aggression is the price of admission. During breeding, you cannot do tank maintenance without getting bitten. You reach in with a siphon and both parents charge your hand. It does not hurt much, but it is startling every time. Other fish in the tank learn to stay in their corners or suffer the consequences. You accept this or you remove the jewels. There is no peaceful coexistence during a breeding cycle.
Closing Thoughts
Jewel cichlids do not have tank mates. They have targets.
Even our dearest loved ones are sometimes obnoxious, we donโt stop loving them. Try to adopt the same approach to your jewel cichlids. Maintaining their behavior is difficult, but maintaining their diet and water parameters is easy. And the end result is definitely rewarding. Good luck!
๐ 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.











































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