+1 pile rocks to the top! I always thought that rocks took up valuable real estate in a tank, reducing swimming room amd over all volume of water. This is wrong, especially with mbuna. It will help with several different things especially breeding. Imo you would have much better chances with breeding as well as survival rates for the females. Those guys are true wife beeters and one hyper dominant male can empty the tank pretty quick. They do appear to be breeding size my guess would be you will have breeding with in a month maybe two. Are the males displaying for the females at all?
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