No african cichlids here, though I do think they make awesome easy (relatively) colourful display fish. But I've only got the one 75 G for now and I am going back to goldies for the time being. 

There's an all-rock aquascape that I quite like, made to house some tanganyikans. A combination of fake rock module backgrounds, real rocks, sand and very nice lighting. Would look amazing with a nice mix of Malawi cichlids.