Neon tetra
Peaceful · Middle · easy care
- 1.6 in adult
- 10+ gal
- 70–79 °F
- pH 6 to 7.5
- groups of 6+
Schooling fish
These fish need a group of six or more to feel safe and show natural behavior. Pick one or two schools and give each the group size listed.
Bronze corydoras
Peaceful · Bottom · easy care
- 2.75 in adult
- 20+ gal
- 72–80 °F
- pH 6 to 8
- groups of 6+
Harlequin rasbora
Peaceful · Middle · easy care
- 2 in adult
- 10+ gal
- 72–81 °F
- pH 6 to 7.5
- groups of 8+
Zebra danio
Peaceful · Top · easy care
- 2 in adult
- 10+ gal
- 64–77 °F
- pH 6.5 to 8
- groups of 6+
Cardinal tetra
Peaceful · Middle · moderate care
- 1.2 in adult
- 20+ gal
- 73–81 °F
- pH 5 to 7
- groups of 8+
Ember tetra
Peaceful · Middle · easy care
- 1.2 in adult
- 10+ gal
- 73–84 °F
- pH 6 to 7.5
- groups of 8+
Otocinclus
Peaceful · Bottom · moderate care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Panda corydoras
Peaceful · Bottom · easy care
- 2 in adult
- 15+ gal
- 68–77 °F
- pH 6 to 7.5
- groups of 6+
Chili rasbora
Peaceful · Middle · moderate care
- 0.8 in adult
- 5+ gal
- 72–82 °F
- pH 5 to 7
- groups of 8+
Celestial pearl danio
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–78 °F
- pH 6.5 to 7.5
- groups of 6+
White cloud mountain minnow
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 64–72 °F
- pH 6 to 8
- groups of 6+
Cherry barb
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Tiger barb
Semi-aggressive · Middle · easy care
- 3 in adult
- 29+ gal
- 74–80 °F
- pH 6 to 8
- groups of 6+
Pygmy corydoras
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Rummy-nose tetra
Peaceful · Middle · moderate care
- 2 in adult
- 20+ gal
- 75–82 °F
- pH 5.5 to 7
- groups of 8+
Black neon tetra
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 73–81 °F
- pH 5.5 to 7.5
- groups of 6+
Glowlight tetra
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 72–80 °F
- pH 6 to 7.5
- groups of 6+
Dwarf neon rainbowfish
Peaceful · Middle · easy care
- 3 in adult
- 29+ gal
- 75–81 °F
- pH 6.5 to 7.5
- groups of 6+
Boesemani rainbowfish
Peaceful · Middle · easy care
- 4.5 in adult
- 55+ gal
- 75–82 °F
- pH 7 to 8
- groups of 6+
Acei cichlid
Semi-aggressive · Middle · easy care
- 6 in adult
- 55+ gal
- 74–82 °F
- pH 7.5 to 8.5
- groups of 6+
Bandit corydoras
Peaceful · Bottom · easy care
- 1.9 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7
- groups of 6+
Black phantom tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Black ruby barb
Peaceful · Middle · easy care
- 3 in adult
- 29+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Black skirt tetra
Peaceful · Middle · easy care
- 3 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Bleeding heart tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–80 °F
- pH 5.5 to 7.5
- groups of 6+
Blind cave tetra
Semi-aggressive · Middle · easy care
- 4.7 in adult
- 29+ gal
- 68–77 °F
- pH 6.5 to 8
- groups of 6+
Bloodfin tetra
Peaceful · Top · easy care
- 2.2 in adult
- 20+ gal
- 65–82 °F
- pH 6 to 8
- groups of 6+
Brilliant rasbora
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 5.5 to 7
- groups of 8+
Buenos Aires tetra
Semi-aggressive · Middle · easy care
- 3 in adult
- 29+ gal
- 64–82 °F
- pH 6 to 8
- groups of 6+
Butterfly goodeid
Semi-aggressive · Middle · easy care
- 4 in adult
- 30+ gal
- 70–75 °F
- pH 7 to 8
- groups of 6+
Celebes rainbowfish
Peaceful · Top · moderate care
- 3 in adult
- 29+ gal
- 68–82 °F
- pH 7 to 8
- groups of 6+
Checker barb
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 64–77 °F
- pH 5.5 to 7.5
- groups of 6+
Clown barb
Peaceful · Middle · easy care
- 5.9 in adult
- 55+ gal
- 75–82 °F
- pH 6 to 7.5
- groups of 6+
Colombian tetra
Peaceful · Middle · easy care
- 2.6 in adult
- 30+ gal
- 75–79 °F
- pH 6 to 7.5
- groups of 6+
Congo tetra
Peaceful · Middle · moderate care
- 3 in adult
- 29+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Coral red pencilfish
Peaceful · Middle · moderate care
- 1.1 in adult
- 10+ gal
- 75–82 °F
- pH 5 to 7
- groups of 8+
Demasoni cichlid
Aggressive · Bottom · moderate care
- 3.9 in adult
- 55+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 12+
Denison barb
Peaceful · Middle · moderate care
- 6 in adult
- 55+ gal
- 64–77 °F
- pH 6.8 to 7.8
- groups of 6+
Diamond tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 7.5
- groups of 6+
Dwarf chain loach
Peaceful · Bottom · moderate care
- 2.5 in adult
- 20+ gal
- 75–82 °F
- pH 6.5 to 7.5
- groups of 6+
Dwarf corydoras
Peaceful · Middle · moderate care
- 1.4 in adult
- 10+ gal
- 68–82 °F
- pH 6 to 7.5
- groups of 8+
Dwarf pencilfish
Peaceful · Middle · moderate care
- 1.4 in adult
- 10+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Dwarf rasbora
Peaceful · Middle · moderate care
- 1 in adult
- 5+ gal
- 75–82 °F
- pH 5 to 7
- groups of 8+
Emerald corydoras
Peaceful · Bottom · easy care
- 3 in adult
- 29+ gal
- 72–82 °F
- pH 5.8 to 8
- groups of 6+
Emperor tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Exclamation point rasbora
Peaceful · Middle · moderate care
- 0.6 in adult
- 5+ gal
- 72–82 °F
- pH 5.5 to 7
- groups of 8+
Flame tetra
Peaceful · Middle · easy care
- 1 in adult
- 10+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Forktail blue-eye rainbowfish
Peaceful · Top · moderate care
- 2 in adult
- 10+ gal
- 72–80 °F
- pH 7 to 8
- groups of 6+
Giant danio
Semi-aggressive · Top · easy care
- 6 in adult
- 55+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Glass catfish
Peaceful · Middle · moderate care
- 3 in adult
- 29+ gal
- 75–82 °F
- pH 6.5 to 7.5
- groups of 6+
GloFish danio
Peaceful · Top · easy care
- 2 in adult
- 10+ gal
- 64–77 °F
- pH 6.5 to 8
- groups of 6+
GloFish tetra
Peaceful · Middle · easy care
- 3 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Glowlight danio
Peaceful · Middle · easy care
- 1.5 in adult
- 15+ gal
- 66–75 °F
- pH 6 to 7.5
- groups of 6+
Gold barb
Peaceful · Middle · easy care
- 2.8 in adult
- 20+ gal
- 64–75 °F
- pH 6 to 8
- groups of 6+
Golden pencilfish
Peaceful · Top · moderate care
- 2.6 in adult
- 15+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Green neon tetra
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 75–82 °F
- pH 5 to 6.5
- groups of 8+
Head and tail light tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 72–82 °F
- pH 6 to 7.8
- groups of 6+
Indian glassfish
Peaceful · Middle · moderate care
- 3.1 in adult
- 20+ gal
- 72–82 °F
- pH 7 to 8
- groups of 6+
Julii corydoras
Peaceful · Bottom · easy care
- 2.5 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Kerri tetra
Peaceful · Middle · easy care
- 1.1 in adult
- 20+ gal
- 75–81 °F
- pH 6 to 7.5
- groups of 6+
Kubotai rasbora
Peaceful · Middle · easy care
- 0.8 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 8+
Lambchop rasbora
Peaceful · Middle · easy care
- 1.2 in adult
- 10+ gal
- 73–82 °F
- pH 6 to 7.5
- groups of 8+
Least killifish
Peaceful · Middle · easy care
- 1.2 in adult
- 5+ gal
- 64–80 °F
- pH 7 to 8
- groups of 6+
Lemon tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 8
- groups of 6+
Marbled hatchetfish
Peaceful · Top · moderate care
- 1.5 in adult
- 20+ gal
- 75–82 °F
- pH 5.5 to 7
- groups of 6+
Medaka
Peaceful · Top · easy care
- 1.5 in adult
- 10+ gal
- 65–82 °F
- pH 6.5 to 8
- groups of 6+
Odessa barb
Peaceful · Middle · easy care
- 2.5 in adult
- 29+ gal
- 68–79 °F
- pH 6 to 8
- groups of 6+
Pearl danio
Peaceful · Top · easy care
- 2.6 in adult
- 20+ gal
- 68–77 °F
- pH 6 to 8
- groups of 6+
Penguin tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Peppered corydoras
Peaceful · Bottom · easy care
- 2.8 in adult
- 20+ gal
- 64–77 °F
- pH 6 to 8
- groups of 6+
Phoenix rasbora
Peaceful · Middle · moderate care
- 0.8 in adult
- 5+ gal
- 74–82 °F
- pH 5 to 7
- groups of 8+
Rainbow shiner
Peaceful · Middle · easy care
- 3 in adult
- 30+ gal
- 60–75 °F
- pH 6.5 to 8
- groups of 6+
Red eye tetra
Peaceful · Middle · easy care
- 2.8 in adult
- 29+ gal
- 73–82 °F
- pH 6 to 8
- groups of 6+
Red neon blue-eye
Peaceful · Top · moderate care
- 1.2 in adult
- 10+ gal
- 74–82 °F
- pH 6 to 7.5
- groups of 6+
Red phantom tetra
Peaceful · Middle · moderate care
- 1.3 in adult
- 15+ gal
- 68–77 °F
- pH 5.5 to 7.5
- groups of 6+
Red rainbowfish
Peaceful · Middle · easy care
- 5.9 in adult
- 55+ gal
- 72–79 °F
- pH 7 to 8
- groups of 6+
Rosy barb
Peaceful · Middle · easy care
- 6 in adult
- 29+ gal
- 64–77 °F
- pH 6 to 8
- groups of 6+
Rosy tetra
Peaceful · Middle · easy care
- 1.3 in adult
- 15+ gal
- 75–82 °F
- pH 6 to 7.5
- groups of 6+
Ruby tetra
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–80 °F
- pH 5 to 7
- groups of 8+
Salt-and-pepper corydoras
Peaceful · Bottom · moderate care
- 1 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Saulosi cichlid
Semi-aggressive · Bottom · moderate care
- 3.4 in adult
- 40+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 6+
Scissortail rasbora
Peaceful · Middle · easy care
- 6 in adult
- 40+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Serpae tetra
Semi-aggressive · Middle · easy care
- 1.6 in adult
- 20+ gal
- 72–79 °F
- pH 5.5 to 7.5
- groups of 6+
Silvertip tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Spotted blue-eye
Peaceful · Top · moderate care
- 1 in adult
- 10+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Sterbai corydoras
Peaceful · Bottom · easy care
- 2.6 in adult
- 20+ gal
- 74–82 °F
- pH 6 to 7.6
- groups of 6+
Threadfin rainbowfish
Peaceful · Middle · moderate care
- 2 in adult
- 20+ gal
- 73–84 °F
- pH 6 to 7
- groups of 6+
Turquoise rainbowfish
Peaceful · Middle · easy care
- 4.7 in adult
- 55+ gal
- 72–79 °F
- pH 7 to 8
- groups of 6+
X-ray tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 75–82 °F
- pH 6 to 8
- groups of 6+
No species on this list match those filters. Try a larger tank or clear a filter.
More fish lists
Fish for a 5 gallon tankFish for a 10 gallon tankFish for a 15 gallon tankFish for a 20 gallon tankFish for a 29 gallon tankFish for a 30 gallon tankFish for a 40 gallon tankFish for a 50 gallon tankFish for a 55 gallon tankFish for a 75 gallon tankFish for a 100 gallon tankFish for a 125 gallon tankBest fish for beginnersBetta tank matesGoldfish tank matesAngelfish tank matesShrimp-safe fishCold-water fishBottom-dwelling fishTop-dwelling fishAlgae eatersNano fishCenterpiece fishFish for hard waterFish for soft waterDither fishColorful freshwater fishAll fish
Names, and adult sizes where the article gives one, are checked against Wikipedia; care ranges are common hobby guidance, and each species page says which is which. 89 of these 89 are fish. Photos are real photographs from Wikimedia Commons, credited below; the lineup is our own drawing at one scale.
Photo credits
Real photographs from Wikimedia Commons, resized and cropped to fit; each is used under the license named.
- Neon tetra Holger Krisp, CC BY 3.0, via Wikimedia Commons
- Bronze corydoras Quatermass (English Wikipedia), Public domain, via Wikimedia Commons
- Harlequin rasbora NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
- Zebra danio Roundish, CC0, via Wikimedia Commons
- Cardinal tetra CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
- Ember tetra Klaus Rudloff, CC BY-SA 4.0, via Wikimedia Commons
- Otocinclus CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
- Panda corydoras Chronotopian, CC BY-SA 3.0, via Wikimedia Commons
- Chili rasbora JoKrimmel, CC BY-SA 4.0, via Wikimedia Commons
- Celestial pearl danio Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
- White cloud mountain minnow Petrtyl, CC BY 4.0, via Wikimedia Commons
- Cherry barb Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Tiger barb Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Pygmy corydoras Birger A, CC BY-SA 3.0, via Wikimedia Commons
- Rummy-nose tetra PierangeloGatto, CC BY-SA 4.0, via Wikimedia Commons
- Black neon tetra Debivort, CC BY-SA 3.0, via Wikimedia Commons
- Glowlight tetra gonzalovalenzuela; cropped by Kyknos, CC BY 2.0, via Wikimedia Commons
- Dwarf neon rainbowfish Leo-nie-weh-oh; cropped by Der Regenbogenfisch, Public domain, via Wikimedia Commons
- Boesemani rainbowfish H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Acei cichlid Toby Hudson, CC BY-SA 3.0, via Wikimedia Commons
- Bandit corydoras Gonzalo Valenzuela, CC BY-SA 2.0, via Wikimedia Commons
- Black phantom tetra Krächz, CC BY 3.0, via Wikimedia Commons
- Black ruby barb Derek Ramsey (Ram-Man), CC BY-SA 2.5, via Wikimedia Commons
- Black skirt tetra emptyvi, CC BY-SA 3.0, via Wikimedia Commons
- Bleeding heart tetra 5snake5, CC0, via Wikimedia Commons
- Blind cave tetra James St. John, CC BY 2.0, via Wikimedia Commons
- Bloodfin tetra VGW2006, Public domain, via Wikimedia Commons
- Brilliant rasbora Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Buenos Aires tetra Øyvind Holmstad, CC BY-SA 3.0, via Wikimedia Commons
- Butterfly goodeid Przemysław Malkowski, CC BY-SA 3.0, via Wikimedia Commons
- Celebes rainbowfish Brent Tibbatts, CC BY 3.0, via Wikimedia Commons
- Checker barb Dodoni, CC BY-SA 3.0, via Wikimedia Commons
- Colombian tetra Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Congo tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Coral red pencilfish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Demasoni cichlid lee Nachtigal, CC BY 2.0, via Wikimedia Commons
- Denison barb Anandarajkumar, CC BY-SA 3.0, via Wikimedia Commons
- Diamond tetra SOK, CC BY-SA 4.0, via Wikimedia Commons
- Dwarf chain loach Stefan Maurer, CC BY-SA 2.0, via Wikimedia Commons
- Dwarf corydoras AquariaNR, CC BY-SA 3.0 de, via Wikimedia Commons
- Dwarf pencilfish Fanch from Paris, France, CC BY 2.0, via Wikimedia Commons
- Dwarf rasbora R.workoran, CC BY-SA 4.0, via Wikimedia Commons
- Emerald corydoras NonstickRon, CC BY-SA 2.0, via Wikimedia Commons
- Emperor tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Exclamation point rasbora R.workoran, CC BY-SA 4.0, via Wikimedia Commons
- Flame tetra Igor Balashov (iNaturalist), CC BY 4.0, via Wikimedia Commons
- Forktail blue-eye rainbowfish Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Giant danio Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Glass catfish Martin Fisch, CC BY-SA 2.0, via Wikimedia Commons
- GloFish danio Karol Głąb (Karol007), CC BY-SA 3.0, via Wikimedia Commons
- GloFish tetra Bobby823Sk, CC BY-SA 4.0, via Wikimedia Commons
- Glowlight danio Melanochromis, Public domain, via Wikimedia Commons
- Gold barb Fred Hsu, CC BY-SA 3.0, via Wikimedia Commons
- Green neon tetra Sascha Biedermann, CC BY-SA 2.5, via Wikimedia Commons
- Head and tail light tetra Deadlyballistics (English Wikipedia), Public domain, via Wikimedia Commons
- Indian glassfish opencage, CC BY-SA 2.5, via Wikimedia Commons
- Julii corydoras Bob Jenkins, CC BY 2.0, via Wikimedia Commons
- Kerri tetra Juan R. Lascorz, CC BY-SA 3.0, via Wikimedia Commons
- Kubotai rasbora BottomDog, CC BY-SA 3.0, via Wikimedia Commons
- Lambchop rasbora AverageWalrus, CC BY-SA 4.0, via Wikimedia Commons
- Least killifish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Lemon tetra SOK, CC BY-SA 4.0, via Wikimedia Commons
- Marbled hatchetfish Sven Kullander, CC BY-SA 4.0, via Wikimedia Commons
- Medaka Seotaro, CC BY-SA 3.0, via Wikimedia Commons
- Odessa barb Anandarajkumar, CC BY-SA 3.0, via Wikimedia Commons
- Pearl danio Павлик Лисицын, CC BY 4.0, via Wikimedia Commons
- Penguin tetra Kkonstan, CC BY 3.0, via Wikimedia Commons
- Peppered corydoras Przemysław Malkowski, CC BY 2.5, via Wikimedia Commons
- Phoenix rasbora Andrewbogott, CC BY-SA 4.0, via Wikimedia Commons
- Rainbow shiner H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Red eye tetra Jhartshorn, CC BY-SA 4.0, via Wikimedia Commons
- Red phantom tetra Tsunamicarlos (English Wikipedia), Public domain, via Wikimedia Commons
- Red rainbowfish Hectonichus, CC BY-SA 3.0, via Wikimedia Commons
- Rosy barb Kkonstan, CC BY 3.0, via Wikimedia Commons
- Rosy tetra Aquakeeper14, CC BY-SA 3.0, via Wikimedia Commons
- Ruby tetra Thomas Siems, CC BY-SA 2.0, via Wikimedia Commons
- Salt-and-pepper corydoras D.W., CC0, via Wikimedia Commons
- Saulosi cichlid Gerard Delany, CC BY-SA 2.5, via Wikimedia Commons
- Scissortail rasbora Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Serpae tetra Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Silvertip tetra Filtropat; cropped by Kyknos, CC BY-SA 3.0, via Wikimedia Commons
- Spotted blue-eye Der Regenbogenfisch, CC BY-SA 3.0 de, via Wikimedia Commons
- Sterbai corydoras Matthew Mannell, Public domain, via Wikimedia Commons
- Threadfin rainbowfish NRJMelvinT, CC BY-SA 4.0, via Wikimedia Commons
- Turquoise rainbowfish Thomnight, CC BY-SA 2.0, via Wikimedia Commons
- X-ray tetra Debivort, CC BY-SA 3.0, via Wikimedia Commons
.jpg){kind=link}
.jpg){kind=link}
.JPG){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.JPG){kind=link}
_3.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
