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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
Knodus Pasco
Knodus pasco
Stevardiidae
Least Concern
Knodus Savannensis
Knodus savannensis
Stevardiidae
Least Concern
Knodus Septentrionalis
Knodus septentrionalis
Stevardiidae
Least Concern
Knodus Smithi
Knodus smithi
Stevardiidae
Least Concern
Knodus Tanaothoros
Knodus tanaothoros
Stevardiidae
Least Concern
Knodus Tiquiensis
Knodus tiquiensis
Stevardiidae
Least Concern
Knodus Victoriae
Knodus victoriae
Stevardiidae
Least Concern
Knodus Weitzmani
Knodus weitzmani
Stevardiidae
Least Concern
Knoepffler's Elephantfish
Boulengeromyrus knoepffleri
Mormyridae
Least Concern
Knout goby
Mesogobius batrachocephalus
Gobiidae
Least Concern
Kokuni
Chrysichthys cranchii
Bagridae
Least Concern
Kola rainbowfish
Melanotaenia kolaensis
Melanotaeniidae
Least Concern
Kongoro lampeye
Lacustricola kongoranensis
Poeciliidae
Least Concern
Konti barb
Osteochilichthys thomassi
Least Concern
Koragu tank goby
Glossogobius koragensis
Gobiidae
Least Concern
Korean Bullhead
Tachysurus sinensis
Bagridae
Least Concern
Korean lamprey
Eudontomyzon morii
Petromyzontidae
Least Concern
Korogwe tilapia
Oreochromis korogwe
Cichlidae
Least Concern
Koshi Nangra
Nangra assamensis
Least Concern
Kosswig's loach
Turcinoemacheilus kosswigi
Nemacheilidae
Least Concern
Kottelatia Brittani
Kottelatia brittani
Least Concern
Kottelatlimia Hipporhynchos
Kottelatlimia hipporhynchos
Cobitidae
Least Concern
Kottelatlimia Katik
Kottelatlimia katik
Cobitidae
Least Concern
Kribia Kribensis
Kribia kribensis
Eleotridae
Least Concern
Kribia Nana
Kribia nana
Eleotridae
Least Concern
Kribia Uellensis
Kribia uellensis
Eleotridae
Least Concern
Krieg's Mini Tetra
Serrapinnus kriegi
Characidae
Least Concern
Krishna Mystus
Hemibagrus maydelli
Bagridae
Least Concern
Krobia
Krobia guianensis
Cichlidae
Least Concern
Krobia Petitella
Krobia petitella
Cichlidae
Least Concern
Krobia Xinguensis
Krobia xinguensis
Cichlidae
Least Concern
Kronichthys Heylandi
Kronichthys heylandi
Least Concern
Kronichthys Lacerta
Kronichthys lacerta
Least Concern
Kronichthys Subteres
Kronichthys subteres
Least Concern
Krynicki's loach
Oxynoemacheilus merga
Nemacheilidae
Least Concern
Kryptolebias Caudomarginatus
Kryptolebias caudomarginatus
Rivulidae
Least Concern
Kryptopterus Cryptopterus
Kryptopterus cryptopterus
Siluridae
Least Concern
Kryptopterus Lais
Kryptopterus lais
Siluridae
Least Concern
Kryptopterus Palembangensis
Kryptopterus palembangensis
Siluridae
Least Concern
Kryptopterus Sabanus
Kryptopterus sabanus
Siluridae
Least Concern
Kryptopterus Schilbeides
Kryptopterus schilbeides
Siluridae
Least Concern
Edible
Kryptopterus Vitreolus
Kryptopterus vitreolus
Siluridae
Least Concern
Kuban barbel
Barbus kubanicus
Cyprinidae
Least Concern
Kuban long-barbelled gudgeon
Romanogobio pentatrichus
Cyprinidae
Least Concern
Kuban's nase
Chondrostoma kubanicum
Cyprinidae
Least Concern
Kubuna hardyhead
Craterocephalus randi
Atherinidae
Least Concern
Küçük Menderes spined loach
Cobitis fahireae
Cobitidae
Least Concern
Kukumai
Bathybagrus grandis
Bagridae
Least Concern