also, posting every five minutes doesn't tend to make people want to help you. This isn't a chat room, so your questions may take a few hours before people respond.
In my opinion, it may work, but I doubt it. Africans typically need warmer harder water than a Bluegill. Also, the BG is going to get much bigger than most Mbuna, though it may work with Haps and Peacocks. Give me details of your current setup