Synodontis nigriventris

The adult of the black-bellied upside-down catfish swims, as the name suggests, belly upwards, while juveniles behave quite normally. A nocturnal, peaceable species, it is omnivorous, but will require a small amount of extra vegetable material. Rarely breeds in captivity. Size: 10cm.

• Ameca splendens
• Gymnocorymbus ternetzi
• Telescope-eyed goldfish
• Labeotropheus trewavasae
• Kryptopterus bicirrhis