Coffee Bean Tetra Care Guide: Tank Setup, Diet, Tank Mates & More

Table of Contents

• Key Takeaways
• Species Overview
• Classification
• Origin & Natural Habitat
• Appearance & Identification
• Average Size & Lifespan
• Care Guide
• Tank Mates
• Food & Diet
• Breeding & Reproduction
• Common Health Issues
• Common Mistakes to Avoid
• Where to Buy
• Frequently Asked Questions
• Closing Thoughts
• Recommended Video
• References

The Coffee Bean Tetra is one of those fish that earns its common name perfectly. That large, dark oval blotch on the flank looks exactly like a roasted coffee bean, and once you see it, you can’t unsee it. It’s a small, understated tetra that doesn’t rely on flashy neon colors to get your attention. Instead, it wins you over with its bold markings and hardy personality.

Hyphessobrycon takasei comes from the lower Amazon basin near Belém, Brazil, and it’s been gaining popularity in the hobby over the past several years. It’s not a fish you’ll find in every pet store, but it’s becoming more available through online specialty retailers. In my 25+ years in the hobby, I’ve seen a lot of tetras come and go in terms of popularity, and this one has real staying power. It’s hardy, peaceful, and has a look that’s completely its own.

Here’s everything you need to know to keep Coffee Bean Tetras happy and healthy in your aquarium.

Key Takeaways

• Hardy and adaptable species that does well in a range of water conditions, making it suitable for beginners and experienced keepers alike
• Named for the distinctive large, dark body spot that resembles a coffee bean, giving it instant visual appeal
• Peaceful schooling fish that should be kept in groups of 8 or more in a minimum 15-gallon tank
• Omnivore that accepts a wide variety of foods including flakes, pellets, frozen, and live options
• Not as commonly available as mainstream tetras, but increasingly stocked by online specialty retailers

Species Overview

Field	Details
Scientific Name	Hyphessobrycon takasei
Common Names	Coffee Bean Tetra
Family	Acestrorhamphidae
Origin	Lower Amazon basin, Brazil (Tocantins and Guamá river drainages)
Care Level	Easy to Moderate
Temperament	Peaceful
Diet	Omnivore
Tank Level	Mid
Maximum Size	1.2 inches (3 cm)
Minimum Tank Size	15 gallons (57 liters)
Temperature	72-82°F (22-28°C)
pH	5.5-7.5
Hardness	2-15 dGH
Lifespan	3-5 years
Breeding	Egg scatterer
Breeding Difficulty	Moderate
Compatibility	Community
OK for Planted Tanks?	Yes

Classification

Taxonomic Level	Classification
Order	Characiformes
Family	Acestrorhamphidae (reclassified from Characidae, Melo et al. 2024)
Genus	Hyphessobrycon
Species	H. takasei (Géry, 1964)

This species was originally described by Jacques Géry in 1964, based on specimens collected from the lower Amazon region of Brazil. The specific name takasei honors Mr. Takase, a Japanese collector who was instrumental in bringing South American fish species to scientific attention.

Note on reclassification: The 2024 phylogenomic study by Melo et al. moved Hyphessobrycon into the newly erected family Acestrorhamphidae, separate from the traditional Characidae. Some older references and databases may still list this species under Characidae. The genus Hyphessobrycon remains the accepted placement for this species.

Origin & Natural Habitat

The Coffee Bean Tetra is native to the lower Amazon basin in Brazil, specifically the Tocantins and Guamá river drainages in the state of Pará, near the city of Belém. This is a region where tropical forest streams and small tributaries feed into the massive Amazon system before it empties into the Atlantic Ocean.

In the wild, these fish inhabit slow-moving streams, creeks, and flooded forest areas with plenty of vegetation and organic debris. The water tends to be soft to moderately soft, slightly acidic, and stained with tannins from decomposing leaf litter. The substrate in their natural habitat is typically sandy or silty, covered in fallen leaves and decaying plant matter. Overhanging vegetation and dense marginal plants provide shade and cover.

What makes this species interesting from a habitat perspective is that it comes from a region that experiences significant seasonal flooding. During the rainy season, these fish move into newly flooded areas where food is abundant. This seasonal variability helps explain why the Coffee Bean Tetra is relatively adaptable in captivity compared to some of its more specialized Hyphessobrycon cousins.

Appearance & Identification

The Coffee Bean Tetra has a classic, streamlined tetra body shape that’s slightly compressed laterally. The base body color is silvery to translucent, with a subtle olive-green or golden sheen along the upper body when light catches it at the right angle. The fins are mostly clear to slightly yellowish.

But the real showstopper is the markings. This species carries two prominent dark spots. First, there’s a dark humeral blotch just behind the gill plate. Then, further back on the flank, there’s a large, oval-shaped dark blotch that gives the fish its common name. This body spot is darker, larger, and more defined than what you see on most spotted tetra species. It genuinely looks like a coffee bean has been stamped onto the side of the fish.

The combination of these two dark markings on an otherwise silvery body makes the Coffee Bean Tetra easy to identify at a glance. There aren’t many tetras in the trade that share this exact pattern.

Male vs. Female

Sexual dimorphism in the Coffee Bean Tetra is subtle but detectable in mature adults. Males tend to be slightly slimmer and a touch more streamlined than females. Females become noticeably rounder and fuller-bodied when carrying eggs, especially when viewed from above. The coloration difference between the sexes is minimal. Both display the same dark body markings, though males may show slightly more intense coloring during breeding condition.

Average Size & Lifespan

The Coffee Bean Tetra is a small species, reaching a maximum size of about 1.2 inches (3 cm) in standard length. This puts it on the smaller end of the tetra spectrum, comparable to species like the ember tetra in terms of body size.

With good care, proper diet, and stable water conditions, expect a lifespan of 3 to 5 years in the home aquarium. As with most small tetras, longevity is directly tied to water quality and stress levels. Fish kept in a well-maintained tank with a proper school size tend to reach the upper end of that range.

Care Guide

Tank Size

A 15-gallon tank is the minimum for a school of Coffee Bean Tetras. These are active mid-level swimmers that need room to school naturally. While their small body size might tempt you into thinking a 10-gallon would work, a 15-gallon provides better swimming space and more stable water parameters for a group of 8 or more.

If you’re planning a community setup with other species, step up to a 20 to 30-gallon tank. A longer tank footprint is always better than a tall one for schooling fish. More horizontal space means more room for natural schooling behavior, and that’s when these fish look their best.

Water Parameters

Parameter	Ideal Range
Temperature	72-82°F (22-28°C)
pH	5.5-7.5
General Hardness	2-15 dGH
KH	1-8 dKH
Ammonia / Nitrite	0 ppm
Nitrate	Below 20 ppm

One of the best things about the Coffee Bean Tetra is its flexibility with water chemistry. Unlike some Hyphessobrycon species that demand ultra-soft, acidic conditions, this fish handles a fairly broad range. It does best on the softer, slightly acidic side, but captive-bred specimens in particular tend to be forgiving of moderately hard water.

That said, consistency matters more than hitting a specific number. Sudden swings in pH or temperature are far more dangerous than being slightly outside the ideal range. If your tap water falls anywhere within the ranges listed above, you should be in good shape. Just make sure your tank is fully cycled before adding these fish.

Filtration & Water Flow

A gentle to moderate flow works best for Coffee Bean Tetras. In the wild, they come from slow-moving streams and flooded areas, so they don’t appreciate being blasted by a strong current. A sponge filter is an excellent option for smaller tanks. For larger setups, a hang-on-back filter or a canister filter with a spray bar to diffuse the output both work well.

Aim for weekly water changes of 20-25% to keep nitrates in check. These fish don’t produce a ton of waste individually, but in a school of 8 or more, regular maintenance is important for keeping the water clean and stable.

Lighting

Moderate to subdued lighting brings out the best in Coffee Bean Tetras. In nature, they live under shaded canopy in areas with limited direct sunlight. Too much bright light can make them feel exposed and skittish. Floating plants are a simple and effective way to diffuse light while giving the fish a sense of overhead cover.

Under dimmer conditions, these fish tend to feel more confident and school more naturally in the open areas of the tank rather than hiding behind decorations.

Plants & Decorations

Coffee Bean Tetras look fantastic in a planted tank. They won’t bother your plants at all, and the contrast between their silvery bodies with those dark markings against a green background is striking. Good plant choices include Java fern, Anubias, Amazon sword, Cryptocorynes, and Vallisneria. Floating plants like Amazon frogbit or red root floaters are great for dimming the light.

For hardscape, driftwood and leaf litter create a natural look that mimics their native habitat. Indian almond leaves are a nice addition. They release tannins that slightly lower pH and add a natural touch to the aquascape. Leave open swimming space in the center and front of the tank so the school has room to move.

Substrate

A dark, fine-grained substrate is the way to go. Dark sand or fine gravel makes the Coffee Bean Tetra’s markings stand out more than a light-colored substrate does. It also more closely mimics the natural leaf litter and silty bottoms of their wild habitat. Avoid substrates that significantly buffer pH upward, like crushed coral, unless your water is naturally very soft and you need the extra buffering.

Tank Mates

The Coffee Bean Tetra is a peaceful community fish that gets along well with a wide range of similarly tempered species. Their small size and calm disposition make them ideal for a mixed community tank, as long as you avoid anything large enough to see them as food or aggressive enough to bully them.

Best Tank Mates

• Ember tetras (similar size, overlapping water needs, great color contrast)
• Pristella tetras (hardy, peaceful, and similarly sized)
• Corydoras catfish (peaceful bottom dwellers that stay out of their way)
• Harlequin rasboras (similar size and temperament, compatible water conditions)
• Otocinclus catfish (gentle algae grazers that make great tankmates)
• Dwarf cichlids (Apistogramma species work well in a community)
• Cherry barbs (peaceful and similarly sized)
• Small plecos (bristlenose, clown pleco)
• Amano shrimp and cherry shrimp (safe with these peaceful tetras)
• Hatchetfish (occupy the top level, no competition for space)

Tank Mates to Avoid

• Angelfish (may see small Coffee Bean Tetras as prey)
• Tiger barbs (notorious fin nippers that will stress them)
• Large cichlids (too aggressive and territorial)
• Bettas (can be unpredictable with small schooling fish)
• Any fish large enough to fit them in its mouth

Food & Diet

Coffee Bean Tetras are unfussy omnivores that accept just about anything you offer them. In the wild, they feed on small invertebrates, insect larvae, algae, and organic matter in the water column. Replicating that variety in captivity is the key to keeping them healthy and looking their best.

• Staple: High-quality micro pellets or crushed flake food
• Frozen foods: Bloodworms, daphnia, brine shrimp, cyclops
• Live foods: Baby brine shrimp, daphnia, microworms
• Supplemental: Freeze-dried tubifex, spirulina-based foods

Feed two to three times daily in small amounts that can be consumed within about two minutes. Because of their small mouths, make sure food particles are sized appropriately. Crush flakes or use micro pellets rather than standard-sized pellets. Regular variety in their diet helps maintain the intensity of their coloring and supports overall health.

Pro tip: Occasional live food feedings, especially daphnia, will get these fish actively hunting and displaying more natural behavior. It’s also a great way to condition them if you’re thinking about breeding.

Breeding & Reproduction

Breeding the Coffee Bean Tetra is achievable for hobbyists with some experience, though it does take a bit of setup and patience. Like most small Hyphessobrycon species, they’re egg scatterers with no parental care.

Breeding Difficulty

Moderate. The Coffee Bean Tetra isn’t one of the hardest tetras to breed, but it’s not as straightforward as something like a lemon tetra either. Getting the water conditions right and properly conditioning the adults are the two biggest factors for success.

Spawning Tank Setup

• Breeding tank: 10 gallons (38 liters) with dim lighting
• Decor: Java moss, spawning mops, or other fine-leaved plants for the fish to scatter eggs into
• Bottom: Bare bottom with a layer of glass marbles or mesh grid to prevent adults from eating the eggs
• Filtration: Gentle air-driven sponge filter only
• Cover: Keep the tank dimly lit or covered on the sides to encourage spawning

Water Conditions for Breeding

• Temperature: 78-80°F (26-27°C)
• pH: 5.5-6.5 (softer and slightly more acidic than general care)
• Hardness: 2-5 dGH
• Use aged water or RO/DI water blended with tap water to achieve target softness
• Adding Indian almond leaves or peat extract helps create ideal conditions

Conditioning & Spawning

Condition a group of adults (or a well-matched pair) with plenty of high-quality frozen and live foods for two to three weeks before attempting to spawn. Females ready to breed will appear noticeably plumper when viewed from above. Males may show slightly brighter coloring and become more active in pursuing females.

Spawning typically occurs in the early morning hours. The pair will scatter adhesive eggs among fine-leaved plants or spawning mops. A single spawning can produce anywhere from 50 to 150 eggs depending on the size and condition of the female.

Egg & Fry Care

Remove the adults immediately after spawning is complete, as they will readily eat their own eggs if given the chance. The eggs are light-sensitive, so keep the breeding tank in a dark or very dimly lit location until the fry are free-swimming.

Eggs typically hatch within 24 to 36 hours. The fry will spend another 3 to 4 days absorbing their yolk sac before becoming free-swimming. Start feeding with infusoria or commercially available liquid fry food. After about a week, the fry should be large enough to accept freshly hatched baby brine shrimp. Maintain pristine water quality throughout this period with gentle, frequent water changes.

Common Health Issues

Ich (White Spot Disease)

Ich is the most common ailment you’ll encounter with small tetras, and the Coffee Bean Tetra is no exception. Stress from shipping, tank moves, or sudden temperature drops is usually the trigger. Gradually raising the tank temperature to 84-86°F (29-30°C) is an effective first line of treatment and is generally well-tolerated by this species. Medications containing malachite green can be used for stubborn cases.

Fin Rot

Fin rot is almost always a water quality issue. If you notice frayed, discolored, or receding fins, check your ammonia, nitrite, and nitrate levels immediately. Improving water quality through more frequent water changes often resolves mild cases without medication. For advanced cases, antibacterial treatments may be necessary.

Neon Tetra Disease

This parasitic disease (caused by Pleistophora hyphessobryconis) can affect various tetra species, not just neons. There is no effective cure, making prevention critical. Always quarantine new arrivals for at least two weeks, and avoid purchasing fish from tanks where any individuals show faded patches, cysts under the skin, or erratic swimming behavior.

Common Mistakes to Avoid

• Keeping too few: Coffee Bean Tetras are schooling fish that need the security of a group. Keeping fewer than 6 leads to stressed, skittish fish that hide constantly. Go for 8 or more, and you’ll see a completely different fish.
• Adding them to an uncycled tank: Like all small tetras, they’re sensitive to ammonia and nitrite spikes. Always make sure your tank is fully cycled before introducing them.
• Oversized food: These are small fish with small mouths. Standard-sized pellets are too big. Use micro pellets or crush flakes to an appropriate size so they can actually eat what you offer.
• Pairing with aggressive or large tankmates: Their small size makes them a target for anything predatory. Stick with similarly sized, peaceful community species.
• Skipping quarantine: Since this species isn’t as widely bred in captivity as mainstream tetras, wild-caught specimens are still common in the trade. Always quarantine before adding to your main tank.

Where to Buy

The Coffee Bean Tetra isn’t a species you’ll typically find at big-box pet stores. It’s gaining popularity, but it still falls into the specialty category. Your best bet for finding them is through online retailers that focus on unusual and less common freshwater species.

Check availability at these trusted retailers:

• Flip Aquatics
• Dan’s Fish

It’s also worth asking your local fish store if they can special-order them through their wholesaler. Because availability can be spotty, it pays to check back regularly or set up stock notifications where available. Expect to pay a bit more than you would for common tetras, but they’re still reasonably priced for a specialty species.

Frequently Asked Questions

Why is it called the Coffee Bean Tetra?

The common name comes from the large, dark oval blotch on the fish’s flank that closely resembles a roasted coffee bean. It’s one of those names that makes perfect sense the moment you see the fish. The marking is bold, clearly defined, and positioned prominently on the body, making it the most recognizable feature of this species.

How many Coffee Bean Tetras should be kept together?

A minimum of 8 is recommended. While some sources say 6 is the minimum for schooling tetras, Coffee Bean Tetras really show their best behavior and coloring in a slightly larger group. In a school of 8 to 12, they’ll swim in a cohesive group and feel much more confident in the open areas of the tank.

What size tank does a Coffee Bean Tetra need?

A 15-gallon tank is the minimum for a school of Coffee Bean Tetras. For a community setup with other species, 20 to 30 gallons is a better starting point. Longer tank footprints are preferable to tall ones because these fish are active horizontal swimmers.

Are Coffee Bean Tetras easy to care for?

Yes, they fall in the easy to moderate range. They’re hardy, adaptable to a range of water conditions, and not picky about food. The main things to get right are keeping them in a proper school, maintaining stable water quality, and sizing their food appropriately for their small mouths. They’re a solid choice for a fishkeeper with at least a little bit of experience.

Can Coffee Bean Tetras live with shrimp?

Yes, adult cherry shrimp and Amano shrimp are generally safe with Coffee Bean Tetras. Their small mouth size means they can’t eat adult shrimp. However, like most fish, they may snack on very small shrimplets if given the opportunity. If you’re trying to grow a shrimp colony, providing plenty of plant cover and hiding spots will help baby shrimp survive.

How long do Coffee Bean Tetras live?

With proper care, Coffee Bean Tetras live 3 to 5 years in captivity. The keys to reaching the upper end of that range are consistent water quality, a varied diet, and keeping them in a group large enough to reduce stress. Stable conditions and regular maintenance go a long way.

Are Coffee Bean Tetras fin nippers?

No, Coffee Bean Tetras are peaceful fish that aren’t known for fin nipping. They’re well-suited for community tanks with other gentle species. As long as they’re kept in a proper school size, they focus their energy on interacting with each other rather than bothering tankmates.

Closing Thoughts

The Coffee Bean Tetra is one of those species that deserves more attention in the hobby. It’s hardy, peaceful, easy to feed, and has a look that’s completely unique among commonly available tetras. That dark, coffee-bean shaped marking on a clean silver body gives it a bold, graphic quality that makes a school of them genuinely eye-catching in a planted tank.

If you’re looking for something a bit different from the usual neon and cardinal tetra lineup, this is a species worth tracking down. It won’t demand a complicated setup or unusual water chemistry, and it plays well with just about every peaceful community fish out there. For a small tetra, it has a lot of character.

Recommended Video

Check out our tetra tier list video where we rank the most popular tetras in the hobby, including the Coffee Bean Tetra:

References

• Froese, R. and D. Pauly, Eds. FishBase. Hyphessobrycon takasei. Accessed 2025.
• SeriouslyFish. Hyphessobrycon takasei species profile. Accessed 2025.
• Géry, J. (1964). Preliminary description of seven new species and two new genera of characoid fishes from the upper Rio Meta in Colombia. Tropical Fish Hobbyist, 13(4), 41-48.
• Melo, B.F., et al. (2024). Phylogenomics of Characidae. Zoological Journal of the Linnean Society, 202(1), 1-37.

Explore More Tetras

The Coffee Bean Tetra is just one of dozens of tetra species we cover in our complete species directory. Whether you’re looking for classic community tetras or unusual specialty species, our guide has you covered.

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