I recently added a pink candy hogfish and a fairy wrasse into my 60g at the same time. The first 3 or 4 days they were peaceful towards each other but over the last couple days the hogfish will chase the wrasse into a cave if he catches him out in the open. The hogfish doesn't bother any of the other fish. Should I be concerned? Wrasse is still eating and doesn't appear overly stressed or damaged. I thought fairy wrasses are usually the bully and semi aggressive? Just to note both fish are about 2-3in long.