I got this toadstool from a friend who's tank sprung a leak. It was fine but he had never extended his sweepers which is to be expected. Well my husband bought me a 210 gallon tank for my birthday because my tanks were too crowded and I had been wanting to combine the tanks. The day of the move I placed all of my rock fish corals etc. in a trough for holding. They had to stay there overnight. The next morning I placed everything in the new tank. That night I noticed this hole with a cottage cheese looking stuff in it. I took a syringe and got all the stuff out. Not sure if he got hit with a rock or he has some kind of pest. I have been monitoring the fish and nothing has bothered it since it's been in the tank. It has been 10 days. It is not getting any bigger the edges look better than they did it does seem a little smaller. I have thought about even dipping but I am new to the corals so I prefer asking before doing anything. I have peroxide, Dip rx, and reef dip. Can anyone help me out and tell me what I should do. I have read that they should heal within a few days.