Six-bar (Burundi) frontosa
A variant of Frontosa (Cyphotilapia frontosa)

Illustration based on published descriptions, not a photograph of a real specimen. Individuals vary.
The classic widely available form with six vertical black bars, collected historically from the Burundi (northern) end of Lake Tanganyika. Six- and seven-bar morphs of true C. frontosa are now regarded as the same species.