Hi. I have a question about Diamond Goby, I’m new on reef tank, 1 year now a lot of things to learn. Almost 2 months ago I bought a diamond Goby mated pair from live aquaria. I have observed the behavior of the two, sometimes the bigger chases the smaller one, sometimes they stay close passively but they never occupy the same hole even during the night, they sleep apart. Is this behavior normal? I thought because they were a mated pair they would be together in the same hole.