I recently acquired a red montipora from my friend one week ago. All of the sudden it appears the tissue is falling off. Within eight hours it is halfway gone. All of my water parameters are in line and the only thing I can think of is possibly my lighting may be stronger than my friends. I dialed back my lighting a bit, but not sure if it’s too late. Also I read about rapid tissue necrosis and didn’t know if that was the culprit. Not sure what to do. I am really stumped here, and any advice is greatly appreciated. Here is a photo showing what the montipora looks like.