so all the tanks that i see with cichlids are either overcrowded or 55 gallon plus. Or, the shell dweller species that can be in a 10 g. a lot of the cichlids i see are around the 6" mark. So what is a middle ground?Say a 30g tank, what kind of cichlids other then shell dwellers could you put in that? assume best case scenario. I'm banned from getting more tanks but I'm curious because I've wanted a cichlid tank, just not another 55 g, because of their personality.