Here you can find information on a wide range of freshwater species. We provide this fish information as a service to aquarists. The species presented here are grouped by family or sub-order.
| Group | Includes: |
| Characins I: | Tetras |
| Characins II: | Other Characins including hatchetfish, headstanders, pencilfish, serrasalmids & more |
| Cyprinids I: | Goldfish |
| Cyprinids II: | Barbs, Danios & rasboras |
| Cyprinids III: | Loaches, sharks, foxes, plus other cyprinids |
| Catfish I: | South American catfish inc Corydoras |
| Catfish II: | African, Asian & Australian catfish |
| Toothcarps | Livebearers and Killifish |
| Labyrinth fish | Bettas (fighting fish), gouramis, paradise fish |
| Cichlids | Cichlids include angelfish, discus and all other cichlids. They are subdivided into African and American cichlids as follows: |
| American cichlids 1: | Dwarf cichlids and eartheaters |
| American cichlids 2: | Acara type cichlids, heroines (inc Discus & angelfish) & other American cichlids |
| African cichlids 1: | Lake Malawi cichlids (including mbunas) & Haplochromines |
| African cichlids 2: | Lake Tanganyikan cichlids & African riverine cichlids |
| Rainbowfish & relatives, galaxias | Rainbows, Blue-eyes, silversides, plus galaxias |
| Perches & relatives | Perches, basses, cods, grunters, glassfish, pygmy perch |
| Brackish water fish | Including scats, monos, barramundi, saratogas etc |
| Gobies, Gudgeons & other fish | Including knifefish, mormyrids and more |