| Cape Lopez lyretail, Lyretailed killifish Aphyosemion australe |  |
| Cardinal Tetra Paracheirodon axelrodi |  |
| Celebes rainbowfish Telmatherina ladigesi |  |
| Checker barb, Checkered barb, Island barb Puntius oligolepis | |
| Cherry barb Puntius titteya |  |
| Clown tetra Distichodus sexfasciatus | |
| Cochu's Blue Tetra Boehlkea fredcochui | |
| Congo Tetra Phenocogrammus interuptus |  |
| Croaking gourami Trichopsis vittata |  |
| Carinotetraodon irrubesco Red-tailed puffer, Red-eyed pufferfish |  |
| Carinotetraodon travancoricus Dwarf puffer fish |  |
| Carnegiella strigata strigata Marbled hatchetfish |  |
| Chilatherina bleheri Bleher's rainbowfish | |
| Cichlosoma salvini Salvins cichlid | |
| Colisa chuna Honey gourami |  |
| Colisa lalia Dwarf Gourami | |
| Copadichromis borleyi |  |
| Corydoras adolfoi Adolfo's cory cat | |
| Corydoras aeneus Bronze corycat, Gold striped cory |  |
| Corydoras arcuatus Arched cory, Skunk cory | |
| Corydoras elegans Elegant cory | |
| Corydoras haraldschultzi Mosaic corydoras |  |
| Corydoras hastatus Dwarf Cory, Pygmy catfish | |
| Corydoras julii Leopard Cory |  |
| Corydoras leopardus Leopard corycat |  |
| Corydoras melanistius Blue-spotted Corydoras |  |
| Corydoras paleatus Peppered corydoras, Peppered catfish | |
| Corydoras panda Panda corydoras, Panda catfish | |
| Corydoras schwartzi Schwartz's Corydoras |  |
| Corydoras sodalis False Network Cory |  |
| Corydoras sterbai Sterba's Cory |  |
| Crenicichla compressiceps |  |
| Cyphotilapia frontosa Frontosa, humphead cichlid | |
| Cyprichromis leptosoma species Jumbo Kitumba |  |
| Cyrtocara moorii Blue dolphin cichlid |  |
When stocking an aquarium, always chose species that tolerate the same water conditions: temperature, pH, hardness and salinity. Read more about water conditions in the aquarium here