Pseudotropheus ater

Pseudotropheus ater is a species of cichlid endemic to Lake Malawi where it is only known from around Chinyamwezi Island and Chinyankwazi Island. It prefers areas with rocky substrates at depths of from 3 to 15 m where it grazes from the rock surfaces. This species can reach a length of 8.1 cm SL. It can also be found in the aquarium trade.