Skip to main content
African Red-eyed Tetra© NasserHalaweh / CC BY-SA 4.0

African Red-eyed Tetra

The African Red-eyed Tetra is a striking characin native to a handful of river systems in Nigeria, known for its gleaming silver body and vivid red-rimmed eyes. Growing to nearly 10cm, it's a fast, active swimmer that does best in a long tank with plenty of horizontal swimming room. Peaceful by nature, it thrives in a shoal, and watching a group move together shows off its shimmering scales beautifully. Because of its energetic swimming style and specific space needs, it's generally considered a fish for keepers with some prior aquarium experience.

View African Red-eyed Tetra encyclopedia →
Limited Time Offer

0% commission on your first sales!Register by September 30, 2026 and your first 2 sales are commission-free!

Breeder Wanted!

List on BreederDirect and sell directly to customers nationwide!

Free registrationNo monthly feesCommission on sales only
Register Now for Free

Our 6 Transparency Commitments

All Tropical Fish listings include water quality, temperament, and tank size information from verified Breeder.

  • Origin Disclosed
  • Real Photos
  • Water Quality Disclosed
  • Recommended Tank Size
  • Temperament Disclosed
  • Breed Line Disclosed
Browse all 301 breeds
0 items

Verified breeders wanted for Tropical Fish

Breeders are signing up now ahead of launch. Subscribe to be notified when new listings go live.

Getting alerts is free with a member account. When new listings match your saved search, we'll notify you by email and in-app.

Browse other categories

Verified breeders (preview)

Are you raising tropical fish?

Register as a breeder and connect with buyers directly.

Apply as a breeder

About African Red-eyed Tetra

Meet the African Red-eyed Tetra, a silver-scaled characin from Nigeria with striking red eyes. Growing to about 10cm, this fast-swimming intermediate-level fish shines when kept in a shoal.

7 things to know before welcoming a African Red-eyed Tetra

  1. 1Needs a long tank

    Growing to nearly 10cm and a powerful swimmer, this tetra needs plenty of horizontal swimming space. A tank that's too short can leave it with nowhere to stretch out, which adds stress.

  2. 2Keep it in a shoal

    Keeping a decent-sized group helps this fish settle in and behave naturally. A shoal is more likely to show its natural swimming patterns than a lone individual.

  3. 3Match tankmates by size

    It's peaceful by nature, but its size and fast swimming can overwhelm much smaller fish. Tankmates of a similar size and activity level make for a calmer community tank.

  4. 4Best for experienced keepers

    This species is generally rated as intermediate difficulty. Some prior experience with water quality management and shoaling fish will make the transition smoother.

  5. 5Stick to basic water care

    It doesn't demand an unusual setup, but with a shoal in the tank, water quality can decline faster. Regular water changes help keep the environment stable.

  6. 6Watch the red eyes

    The bright red rim around the eyes that gives this fish its name can be a useful health indicator. Keep an eye on eye color and scale shine as part of your regular checks.

  7. 7Plan the tank before you buy

    Since this fish can reach nearly 10cm as an adult, it's worth setting up a suitably long tank with some cover before bringing juveniles home.

Frequently asked questions about African Red-eyed Tetra

Q.How big a tank do I need?
A.Since it can grow to nearly 10cm and swims fast, a longer tank with plenty of horizontal space works better than a deep one. If you're keeping a shoal, give them as much room as you reasonably can.
Q.Can it live with other fish?
A.It's fairly peaceful and generally suited to a community tank, but its size and speed can overwhelm much smaller fish. Choosing tankmates of a similar size helps keep things calm.
Q.Is this a good fish for beginners?
A.It's generally considered an intermediate-level fish. Having some experience with water quality management and keeping shoaling fish will make things easier.
Q.Is this species subject to CITES?
A.The African Red-eyed Tetra is not subject to CITES.
Q.Where does the name "Red-eyed Tetra" come from?
A.The name comes from the vivid red rim around its eyes. That splash of color against its gleaming silver scales is one of the fish's most distinctive features.

Useful tools for African Red-eyed Tetra care

💧Aquarium Volume CalculatorCalculate water volume, weight, and heater wattage from tank dimensions🧪Water Quality CheckerFind compatible fish, shrimp, plants & corals based on pH, temperature & hardness🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🤝Compatibility CheckerCheck compatibility between two species on a 5-level scale📊Fish Compatibility MatrixCheck fish compatibility at a glance with our matrix chart🔄Nitrogen Cycle GuideAuto-calculate bacteria colonization timeline for new tank cycling🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glance🚿Water Change CalculatorAuto-calculate optimal water change frequency and volume by tank size and fish count🐠Stocking CalculatorCalculate max fish capacity for your tank size with overstocking alertsElectricity Cost SimulatorCalculate monthly and annual electricity costs for care equipment with presets🧬Breeding PlannerSelect parent varieties to view breeding schedules and offspring patterns🏞️Tank Layout PlannerGet substrate, plant & hardscape suggestions based on tank size and style🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets📋Lifetime Cost SimulatorEstimate lifespan and lifetime costs by species for dogs, cats, reptiles and more🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance💊Medication Dosage CalculatorCalculate proper medication dosage by body weight and medicine type for fish, reptiles, and small animals⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about African Red-eyed Tetra in the encyclopedia

View African Red-eyed Tetra encyclopedia entry →

Care difficulty, lifespan, size and diet — all basics covered.

More in this category

Can't find the one you're looking for?

Post your wishes for free and breeders with matching animals will contact you with introductions.