Neon tetra
Peaceful · Middle · easy care
- 1.6 in adult
- 10+ gal
- 70–79 °F
- pH 6 to 7.5
- groups of 6+
Dither fish
Peaceful schooling fish that swim in the open, so shy cichlids and other timid fish see that the coast is clear and come out too. They are too big for most dwarf cichlids to eat and quick enough to stay out of trouble. For medium cichlids such as severums or acaras, a school of giant danios does the same job.
Harlequin rasbora
Peaceful · Middle · easy care
- 2 in adult
- 10+ gal
- 72–81 °F
- pH 6 to 7.5
- groups of 8+
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+
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+
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+
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+
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+
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+
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+
Diamond tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 7.5
- 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+
Forktail blue-eye rainbowfish
Peaceful · Top · moderate care
- 2 in adult
- 10+ gal
- 72–80 °F
- pH 7 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+
Glowlight danio
Peaceful · Middle · easy care
- 1.5 in adult
- 15+ gal
- 66–75 °F
- pH 6 to 7.5
- 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+
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+
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+
Rainbow shiner
Peaceful · Middle · easy care
- 3 in adult
- 30+ gal
- 60–75 °F
- pH 6.5 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 fishSchooling fishBottom-dwelling fishTop-dwelling fishAlgae eatersNano fishCenterpiece fishFish for hard waterFish for soft waterColorful 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. 33 of these 33 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
- Harlequin rasbora NasserHalaweh, CC BY-SA 4.0, 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
- 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
- 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
- Bleeding heart tetra 5snake5, CC0, via Wikimedia Commons
- Bloodfin tetra VGW2006, Public domain, via Wikimedia Commons
- Brilliant rasbora Lerdsuwa, 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
- Diamond tetra SOK, CC BY-SA 4.0, via Wikimedia Commons
- Emperor tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Forktail blue-eye rainbowfish Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Glass catfish Martin Fisch, CC BY-SA 2.0, via Wikimedia Commons
- Glowlight danio Melanochromis, Public domain, 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
- 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
- Rainbow shiner H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- X-ray tetra Debivort, CC BY-SA 3.0, via Wikimedia Commons
