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.
Apistogramma4 fish
Hyphessobrycon3 fish
Poecilia3 fish
Amphilophus2 fish
Mikrogeophagus2 fish
Neolamprologus2 fish
Paracheirodon2 fish
Pterophyllum2 fish
Trichogaster2 fish
Astronotus1 fish
Betta1 fish
Boraras1 fish
Carassius1 fish
Carinotetraodon1 fish
Carnegiella1 fish
Cleithracara1 fish
Corydoras1 fish
Cyphotilapia1 fish
Danio1 fish
Gymnogeophagus1 fish
Hemigrammus1 fish
Heros1 fish
Herotilapia1 fish
Lamprologus1 fish
Neocaridina1 fish
Pangio1 fish
Pelvicachromis1 fish
Placidochromis1 fish
Puntius1 fish
Rineloricaria1 fish
Rocio1 fish
Symphysodon1 fish
Thorichthys1 fish
Trichopodus1 fish
Trichopsis1 fish
Trigonostigma1 fish
Amazon11 fish
Mexico & Central America7 fish
Southeast Asia7 fish
Lake Tanganyika4 fish
South Asia4 fish
Orinoco3 fish
Caribbean coast2 fish
East Asia2 fish
Guianas2 fish
Paraná & Paraguay2 fish
Rio Madeira2 fish
Africa1 fish
Lake Malawi1 fish
Rio Negro1 fish
Rio Tapajós1 fish
Rio Tocantins1 fish
Unknown origin1 fishAquarium-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
Apistogramma agassizii
Leaf-litter creeks and backwaters of the Amazon basin, Peru to Brazil · stream
Photo: Cisamarc, CC BY-SA 3.0
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
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
Gymnogeophagus balzanii
Paraná-Paraguay and lower Uruguay basins (Brazil, Paraguay, Argentina, Uruguay) · river
Photo: CHUCAO, CC BY-SA 3.0
Betta splendens
Rice paddies and marshes of Thailand · swamp or paddy
Lone male. Males fight. Keep one, or give each his own space.
Long fins. Fin nippers will pick on it.
Photo: ErgoSum88, Public domain
Mikrogeophagus altispinosus
Mamoré and Guaporé basins, Bolivia and Brazil · river
Photo: Corpse89, CC BY-SA 3.0
Apistogramma borellii
Creeks of the Paraguay, lower Parana and Uruguay systems (Brazil, Paraguay, Argentina, Uruguay) · stream
Photo: Dornenwolf, CC BY 4.0
Paracheirodon axelrodi
Rio Negro and upper Orinoco, Brazil and Venezuela · blackwater stream
Photo: Paolo Neo, Public domain
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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
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
Boraras brigittae
Peat swamps of southwest Borneo · swamp or paddy
Photo: Daiju Azuma, CC BY-SA 4.0
Apistogramma cacatuoides
Streams of the upper Amazon, Peru · stream
Photo: Redspider, CC BY-SA 3.0
Placidochromis electra
Lake Malawi: sandy bottoms below ~7 m at Likoma Island, Mara Point and Malawi coast south to Nekete · lake
Predator. Eats any fish that fits in its mouth.
Hard water. Needs hard, alkaline water, like its rift lake.
Photo: Paolo Neo, Public domain
Symphysodon aequifasciatus
Floodplain lakes of the Amazon basin · flooded forest
Photo: H. Zell, CC BY-SA 3.0
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