Freshwater fishes
499 species, each with the water it needs, who it gets along with, and where it comes from. Find one, or browse by family, genus or river.
Hypancistrus9 fish
Corydoras4 fish
Panaqolus4 fish
Ancistrus3 fish
Hyphessobrycon3 fish
Poecilia3 fish
Danio2 fish
Hemigrammus2 fish
Melanotaenia2 fish
Paracheirodon2 fish
Pseudacanthicus2 fish
Trichogaster2 fish
Xiphophorus2 fish
Baryancistrus1 fish
Boraras1 fish
Caridina1 fish
Carinotetraodon1 fish
Carnegiella1 fish
Crossocheilus1 fish
Gymnocorymbus1 fish
Neocaridina1 fish
Neritina1 fish
Otocinclus1 fish
Panaque1 fish
Pangio1 fish
Peckoltia1 fish
Pelvicachromis1 fish
Pethia1 fish
Phenacogrammus1 fish
Pterygoplichthys1 fish
Puntigrus1 fish
Puntius1 fish
Rineloricaria1 fish
Tanichthys1 fish
Trichopodus1 fish
Trichopsis1 fish
Trigonostigma1 fish
Southeast Asia8 fish
South Asia6 fish
Xingu6 fish
Amazon4 fish
Orinoco4 fish
Africa3 fish
East Asia3 fish
Mexico & Central America3 fish
Rio Madeira3 fish
Rio Negro3 fish
Tapajós3 fish
Tocantins3 fish
Caribbean coast2 fish
Curuá2 fish
New Guinea2 fish
South America (widespread)2 fish
Essequibo1 fish
Guianas1 fish
Nanay1 fish
Rio Tapajós1 fish
Rio Tocantins1 fish
Upper Amazon1 fish
Unknown origin2 fish
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Rainbowfish · Melanotaenia
Melanotaenia praecox
Mamberamo River basin, New Guinea · stream
Photo: Raimond Spekking, CC BY-SA 4.0
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Plecos · HypancistrusCR
Brazil banned wild export, so Canadian stock is tank-bred.
Hypancistrus zebra
Volta Grande of the Rio Xingu, Brazil · rapids
Brazil banned wild export, so Canadian stock is tank-bred. Clean, even stripes where L236 are broken and patchy.
Photo: Birger A, CC BY-SA 3.0
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Gouramis & bettas · Trichogaster
Lone male. Males fight. Keep one, or give each his own space.
Trichogaster lalius
Slow, plant-choked waters of India and Bangladesh · swamp or paddy
Lone male. Males fight. Keep one, or give each his own space.
Photo: Kennyannydenny, CC BY-SA 3.0
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Rainbowfish · Melanotaenia
Melanotaenia boesemani
Ayamaru Lakes, West Papua · lake
Photo: H. Zell, CC BY-SA 3.0
Otocinclus vittatus
Streams across South America · stream
Photo: No machine-readable author provided. Chle assumed (based on copyright claims)., CC BY-SA 3.0
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Plecos · PanaqolusUncommon
White vermiculation with orange-red fin edges.
Panaqolus albivermis
Peruvian Amazon · river
White vermiculation with orange-red fin edges. A wood-eater, so add driftwood and vegetables.
Photo: Hantanplan, CC0
Boraras brigittae
Peat swamps of southwest Borneo · swamp or paddy
Photo: Daiju Azuma, CC BY-SA 4.0
Paracheirodon axelrodi
Rio Negro and upper Orinoco, Brazil and Venezuela · blackwater stream
Photo: Paolo Neo, Public domain
Phenacogrammus interruptus
Congo River basin, DR Congo · river
Photo: André Karwath aka Aka, CC BY-SA 2.5
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Tetras · GymnocorymbusStaple
Fin nipper. Keep it away from long-finned fish.
Gymnocorymbus ternetzi
Paraguay and Guaporé basins · river
Fin nipper. Keep it away from long-finned fish.
Photo: emptyvi, CC BY-SA 3.0
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Tetras · CarnegiellaStaple
Jumper. Keep a tight lid on the tank.
Carnegiella strigata
Amazon basin, Peru and Brazil · blackwater stream
Jumper. Keep a tight lid on the tank.
Photo: SOK, CC BY-SA 4.0
Pangio kuhlii
Peat swamp streams of Malaysia and Indonesia · swamp or paddy
Photo: Robert Mollik, CC BY-SA 4.0
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Rasboras & danios · TrigonostigmaStaple
Trigonostigma heteromorpha
Peat swamp streams, Malay Peninsula and Sumatra · swamp or paddy
Photo: NasserHalaweh, CC BY-SA 4.0
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Plecos · RineloricariaStaple
Lays eggs in the open, and the male guards them where you can watch.
Aquarium-bred colour strain · river
Lays eggs in the open, and the male guards them where you can watch. Prefers cooler water.
Photo: Kaden Slone, CC BY 4.0
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Livebearers · PoeciliaStaple
Poecilia wingei
Laguna de los Patos, Venezuela · lake
Photo: Dgrummon, CC BY-SA 4.0
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Shrimp & snails · NeritinaStaple
Invertebrate. Many fish will eat it, so choose tank mates with care.
Neritina natalensis
East African coastal rivers and estuaries · brackish estuary
Invertebrate. Many fish will eat it, so choose tank mates with care.
Photo: Evan Baldonado, CC BY 4.0
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