Lithochromis rubripinnis was previously known as Haplochromis sp. "blue pseudonigricans". It has a wide distribution within the western shores of the Mwanza gulf, being known from Ngoma peninsula, Kissenda Bay, Hippo island. It lives close to the rocky reefs and exhibits the same locale variations as seen in many species. It shares its habitat with L. rufus( ex â€œred pseudonigricansâ€) at Shadi rocks and many other places. The rubripinnis species seems to be more pelagically oriented than the L. rufus in search of its food (females have an iridescent pelagic appearance) some have been observed far from the slopes foraging in zooplancton (Daphnia) at night. It lives from 1 to at least 8 m deep at moderately to steep slopes. Itâ€™s difficult to tell the difference between female L. rubripinnis and L. rufus , so one should avoid keeping them together in the same tank.
This species can't be housed with a blue and red fin species as well, it's a mbipi species than shows a high degree of aggressiveness toward its conspecifics.