I got a shipment of corals in which the shipping materials were damaged, so no charges or anything, but I gave the corals and shrooms a shot in my tank. Some are doing ok, but some of them are dying. My question is, should I whack the dying ones off the rock and keep the LR in the tank, or is the rock considered tainted now and should it be tossed as well? There's some pretty good sized pieces of rock, I'd hate to toss 'em, but I don't want to pollute the tank either.