- Ground sharks (Carcharhiniformes)
- Carpet sharks (Orectolobiformes)
- Stingrays (Myliobatiformes)
- Skates (Rajiformes)
- Bichir (Polypteriformes)
- Lungfish (Dipnoi)
- Gar (Lepisosteiformes)
- Eel (Anguilliformes)
- Bony-tongued fishes (Osteoglossiformes)
- Carps (Cypriniformes)
- Tetra (Characiformes)
- South American knifefish (Gymnotiformes)
-
Catfish (Siluriformes)
- Auchenipteridae
- Callichthyidae
- Doradidae
-
Loricariidae
- Amazon Twig Catfish (Farlowella amazonum)
-
Broadheaded Hypostomus (Hypostomus latifrons)
- Chubby pleco (Parancistrus aurantiacus)
- Flash pleco (Panaqolus albivermis)
- Forktail pleco (Peckoltia furcata)
- Hexagon Twig Catfish (Farlowella nattereri)
- Leopard pleco (Pterygoplichthys gibbiceps)
- Papa panaque (Panaque bathyphilus)
- Parana cone-catfish (Rhinelepis strigosa)
- Rhino-Pleco (Pterygoplichthys scrophus)
- Striped Twig Catfish (Farlowella vittata)
- Suckermouth catfish (Hypostomus plecostomus)
- Sunshine Pleco (Scobinancistrus aureatus)
- Tanke Tiger Pleco (Panaqolus tankei)
- Vermiculated sailfin catfish (Pterygoplichthys disjunctivus)
- Whitespotted hypostomus (Hypostomus arecuta)
- Yellow Spotted Hypostomus (Hypostomus margaritifer)
- Zebra pleco (Hypancistrus zebra)
- Malapteruridae
- Mochokidae
- Pimelodidae
- Pseudopimelodidae
- Salmon (Salmonidae)
- Pikes (Esociformes)
- Cod fish (Gadiformes)
- Cardinalfish (Kurtiformes)
- Gobies (Gobiiformes)
- Pipefish (Syngnathiformes)
- Gouramies (Anabantiformes)
- Flatfish (Pleuronectiformes)
- Cichlides (Cichliformes)
- Rainbowfish (Atheriniformes)
- Killifish (Cyprinodontiformes)
- Blenny (Blenniiformes)
- Wrasse (Labriformes)
- Anglerfish (Lophiiformes)
- Pufferfish (Tetraodontiformes)
- Scorpionfish (Scorpaeniformes)
- Ray-finned fish (Perciformes)
- Dragonet (Callionymiformes)
- Weever (Trachiniformes)
Broadheaded Hypostomus (Hypostomus latifrons)
Living in the Paraguay River basin. It reaches up to 29 cm
In Aquariums and Zoos: rare in european aquariums
In Aquariums and Zoos: rare in european aquariums
woaqzo@yahoo.com