This hasn't been my experiance in my overcrowded tank. Dominant fish will setup territories and protect them. Some fish and most females will always be just swimming back and forth and for some of the Mbuna this is natural. (Labs, acei)zazz said:
The overcrowding has more to do with passing the aggression around. No one fish will take a lot of abuse. That doesn't mean you won't have any losses. The Mbuna's aggressive nature is one of the main reasons I like them. Always on the move. :wink: