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Freshwater Fish Species
All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.
18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Barbonymus Platysoma
Barbonymus platysoma
Cyprinidae
Critically Endangered
Barred topminnow
Quintana atrizona
Poeciliidae
Critically Endangered
Batman loach
Paraschistura chrysicristinae
Nemacheilidae
Critically Endangered
Bear Island charr
Salvelinus salvelinoinsularis
Salmonidae
Critically Endangered
Bedotia Tricolor
Bedotia tricolor
Bedotiidae
Critically Endangered
Betta Burdigala
Betta burdigala
Osphronemidae
Critically Endangered
Betta Chloropharynx
Betta chloropharynx
Osphronemidae
Critically Endangered
Betta Cracens
Betta cracens
Osphronemidae
Critically Endangered
Betta Hendra
Betta hendra
Osphronemidae
Critically Endangered
Betta Miniopinna
Betta miniopinna
Osphronemidae
Critically Endangered
Betta Omega
Betta omega
Osphronemidae
Critically Endangered
Betta Pardalotos
Betta pardalotos
Osphronemidae
Critically Endangered
Betta Pinguis
Betta pinguis
Osphronemidae
Critically Endangered
Betta Rutilans
Betta rutilans
Osphronemidae
Critically Endangered
Bicolor minnow
Tampichthys dichroma
Cyprinidae
Critically Endangered
Big-head schizothoracin
Aspiorhynchus laticeps
Critically Endangered
Bigeye lates
Lates mariae
Latidae
Critically Endangered
Edible
Bighead pupfish
Cyprinodon pachycephalus
Cyprinodontidae
Critically Endangered
Edible
Bignose galaxias
Galaxias macronasus
Galaxiidae
Critically Endangered
Black Madagascar cichlid
Ptychochromoides itasy
Cichlidae
Critically Endangered
Black midas cichlid
Amphilophus astorquii
Cichlidae
Critically Endangered
Black mogurnda
Mogurnda furva
Eleotridae
Critically Endangered
Blackbarred limia
Limia nigrofasciata
Poeciliidae
Critically Endangered
Edible
Blackfin tilapia
Sarotherodon linnellii
Cichlidae
Critically Endangered
Blackspot allotoca
Allotoca maculata
Goodeidae
Critically Endangered
Bleher’s Blue-Eye
Kiunga bleheri
Pseudomugilidae
Critically Endangered
Blind cave loach
Nemacheilus troglocataractus
Nemacheilidae
Critically Endangered
Edible
Blind whiskered catfish
Rhamdia reddelli
Heptapteridae
Critically Endangered
Blotched limia
Limia fuscomaculata
Poeciliidae
Critically Endangered
Blotched mogurnda
Mogurnda spilota
Eleotridae
Critically Endangered
Blue orchid aulonocara
Aulonocara kandeense
Cichlidae
Critically Endangered
Edible
Blunthead silverside
Chirostoma melanoccus
Atherinopsidae
Critically Endangered
Bonytail
Gila elegans
Cyprinidae
Critically Endangered
Bostrychus Expatria
Bostrychus expatria
Eleotridae
Critically Endangered
Bowany barb
Neolissochilus bovanicus
Cyprinidae
Critically Endangered
Brachyglanis Melas
Brachyglanis melas
Heptapteridae
Critically Endangered
Brown Madagascar cichlid
Paretroplus gymnopreopercularis
Cichlidae
Critically Endangered
Burchell's redfin
Pseudobarbus burchelli
Cyprinidae
Critically Endangered
Burnt tail fish
Balantiocheilos ambusticauda
Cyprinidae
Critically Endangered
Butterfly Loach
Sewellia breviventralis
Balitoridae
Critically Endangered
Butterfly splitfin
Ameca splendens
Goodeidae
Critically Endangered
Caecocypris Basimi
Caecocypris basimi
Critically Endangered
Caecogobius Cryptophthalmus
Caecogobius cryptophthalmus
Gobiidae
Critically Endangered
Cairnsichthys Bitaeniatus
Cairnsichthys bitaeniatus
Melanotaeniidae
Critically Endangered
Calabazas shiner
Aztecula calabazas
Critically Endangered
Calabazas shiner
Notropis calabazas
Cyprinidae
Critically Endangered
Campellolebias Intermedius
Campellolebias intermedius
Rivulidae
Critically Endangered
Canterbury mudfish
Neochanna burrowsius
Galaxiidae
Critically Endangered