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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Characiformes | Erythrinidae | Wolf Fish | Tararira Común | Traíra | Hoplias argentinensis |
| 2 | Cypriniformes | Cyprinidae | Common Carp | Carpa Europea | Cyprinus carpio | |
| 3 | Cyprinodontiformes | Poeciliidae | Ten Spotted Live Bearer | Madrecita Diez Manchas | Cnesterodon decemmaculatus | |
| 4 | Western Mosquitofish | Pez Mosquito | Gambusia affinis | |||
| 5 | Perciformes | Cichlidae | Chemeleon Cichlid | Chanchita | Australoheros facetus | |
| 6 | Siluriformes | Heptapteridae | Catfish | Bagre Negro | Rhamdia quelen |