Freshwater fishes
542 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.
Paracheirodon axelrodi
Rio Negro and upper Orinoco, Brazil and Venezuela · blackwater stream
Photo: Paolo Neo, Public domain
Boraras brigittae
Peat swamps of southwest Borneo · swamp or paddy
Photo: Daiju Azuma, CC BY-SA 4.0
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Rasboras & danios · DanioStaple
Danio margaritatus
Spring-fed ponds, Shan Plateau, Myanmar · pond
Photo: Cisamarc, CC BY-SA 3.0
Puntius titteya
Shaded forest streams, Sri Lanka · stream
Photo: NasserHalaweh, CC BY-SA 4.0
Hyphessobrycon amandae
Rio Araguaia basin, Brazil · river
Photo: Cedricguppy - Loury Cédric, CC BY-SA 4.0
Neocaridina davidi
Streams of Taiwan and eastern China · stream
Invertebrate. Many fish will eat it, so choose tank mates with care.
Photo: TonyZimbinski, CC BY-SA 4.0
Paracheirodon innesi
Upper Amazon basin: Peru, Colombia, Brazil · blackwater stream
Photo: Holger Krisp, CC BY 3.0
Symphysodon aequifasciatus
Floodplain lakes of the Amazon basin · flooded forest
Photo: H. Zell, CC BY-SA 3.0
Corydoras pygmaeus
Rio Madeira basin, Brazil · river
Photo: AquaTuer, CC BY-SA 4.0
Hemigrammus erythrozonus
Essequibo River, Guyana · river
Photo: h080, CC BY-SA 2.0
Hyphessobrycon eques
Amazon and Paraguay basins · river
Fin nipper. Keep it away from long-finned fish.
Photo: Douglas Lopes, CC BY 4.0
Pterophyllum altum
Upper Rio Negro and upper Orinoco tributaries (Inírida, Atabapo), Colombia/Venezuela · blackwater stream
Predator. Eats any fish that fits in its mouth.
Photo: Jeff Kubina, CC BY-SA 4.0
Hyphessobrycon pulchripinnis
Rio Tapajós basin, Brazil · river
Photo: Waugsberg, CC BY 2.5
Pterophyllum scalare
Flooded forests of the Amazon basin · flooded forest
Predator. Eats any fish that fits in its mouth.
Long fins. Fin nippers will pick on it.
Photo: Rjcastillo, CC BY 4.0
Cyphotilapia frontosa
Northern Lake Tanganyika: deep rocky slopes 15-70 m, Cape Tembwe to Bulu Point · lake
Predator. Eats any fish that fits in its mouth.
Hard water. Needs hard, alkaline water, like its rift lake.
Photo: Maha Dinesh, CC BY-SA 3.0
Carnegiella strigata
Amazon basin, Peru and Brazil · blackwater stream
Jumper. Keep a tight lid on the tank.
Photo: SOK, CC BY-SA 4.0
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