The stuff we don't like never dies, and the stuff we like would have been dead in less than 2 hours.take the rock out and peal them off IMO........
I had a rock with them on it, I left it in the snow for a week and they lived.......................................
It's a Matted Filefish that will eat them, note some will turn to eating Zoas once the majanos are eradicated. That is a fish that could easily be traded or passed along in the club to others that have majano.