Im starting a mbuna tank and I just wanted to get a general idea of what to expect, as this will be my first african tank. I want a large group, possibly 8-15 fish with at least 3 or 4 species such as Johanni, Kenyi, electric yellow lab, demasoni, or anything relitively the same size with alot of color to dart around some rockwork, any suggestions would be great!. Im wondering what size of tank would work and what kind of filtration to go with, as well as any extras. Any info on this subject would be greatly appreciated, thank you.