I have mated perculas that host a bubble tip anemone on the right side of my tank(90 standard). I have a maroon clown that hosts a kenya tree on the left side of the tank. All has been fine and dandy for 5-6 months. But just in the last 48 hours. I have noticed the female(bigger) percula over hanging around the maroon. They get along fine. Then the male(smaller) percula will go over. Then the two perculas begin to fight locking mouths and vibrating. Female seems to be protecting the maroon. I thought I would have some fighting issues between the two species. But not between the mated pair of perculas. Anyone have and insights?