What my brother in arms said. Corals are sometimes crazy hardy, even if they can be difficult to keep. I have a purple na na
in my tank that died during a power outage. I always leave skeletons in my tank for this reason...one of which is a plate coral if it makes you feel better...but one day I went to move the tissue-less skeleton to discover 2 small patches of tissue left! I have been watching it slowly regrow over its own skeleton over the last few months.