My wife and I were just commenting 3 days ago how beautiful, huge and healthy this toadstool leather coral has become over the past 2 years in my tank. Its even given rise to a small adjacent baby that is growing and healthy. The following day, a quarter sized area in the middle arose and there was clearly some tissue damage. None of the polyps that previously were nearly always fully extended are coming out at all anymore. The size of the tissue destruction is about 10 quarters now. If it were an acropora, I'd cut off the damaged section, but I've never had this happen with a leather before. Has anyone seen this happen before or have any suggestions?