Hi there my girlfriend has had a group of mbuna in a 20 gallon tank for the last couple of months, we are at last able to move them up to a decent sized tank. With them will be going the chinese algae eater that has been in the tank longer than they have. However my girlfriend would like to have somethign else in the tank too. I have a suspicion that nothing else could reall live peacefully in there with them but if anyone knows of anything i would like to know. THe new tank will be 55 gallons