I've been keeping blue leg hermits with my red monticap coral for a couple of months now with no problems and all of a sudden the biggest one decided to sit and stay on it. I thought nothing of it so I left it alone and a couple days later the coral is bleaching right where the hermit was sitting. Naturally I tossed it off but it keeps climbing right back. I'd put it in my sump, but the closest thing I have is the dark back chamber of my all-in-one nano tank. Any suggestions?
