Good afternoon all, so I received a rainbow BTA from a friend in late January, and I now have 6! They seem very happy/healthy, open and bubble up very nicely all day long. Water parameters are good. I do water changes twice a month. This is crazy. Anyone else experience this. I mean, I am fine with it as long as they all stay put and do not wander. But if they start to explore the tank, I will need to take them to a LFS! Can't have them going around killing corals, or themselves.