He’s right. It will effect the rest of the coral. Just take the rock out.I think the problem with killing it is that you release Palytoxin. It looks like it's in a position where you could remove it and exchange it with another rock.
AgreedHe’s right. It will effect the rest of the coral. Just take the rock out.
In back yard away from fume’sBe careful what you do with the rock though, that toxin can get airborne and really sicken you. I think you have to bleach to be sure you don’t have a problem.