Coelotilapia joka is a vulnerable species of cichlid fish from rivers in Sierra Leone and Liberia in West Africa.

[2] It is an oval shaped fish with a black body coloring.

The head has small, irregular yellow lines that extend from the eye to the snout, forehead, and mouth.

Coelotilapia joka is a peaceful, calm species that does well when combined with fish that have a similar temperament and will do well if in a properly sized and maintained tank.

The species requires frequent partial water changes and a pH from 6-7.5 at 73–77 °F (23–25 °C).