I have a male that is about 3.250” and two females that are about 3.5”. The females stay hidden and burrow under rocks and just peek out their faces. The male roams like a shark all around the tank. Occasionally a female will pop out and he’ll swim up to her, present his side, and do some odd dance moves and then she will dart back into a crevice and disappear for hours. Is this normal for females? The male had been in the tank about 3 months. The females a few weeks.