i have seen some people put clown loaches with their mbunas but clown loaches prefer softer water and ph around 7.2 or 7.5. you can try putting a pleco in with your pleco.
JUST FOR THE WARNING: mbuna loves to pick out the eyes of the pleco...(some problems my friends have and lfs have where i am from.)
JUST FOR THE WARNING: mbuna loves to pick out the eyes of the pleco...(some problems my friends have and lfs have where i am from.)