Got a new green Elegant coral. Screwed up & put it too close to my hammer. He got stung on one side. 2/3 of him died but a portion of him is still living (he's moving). Might he come back to life / can I save the rest of him? The store said to put him in a light solution of iodine, 1 TS to 1 quart of tank water for 5 minutes every other day. Anything else I can do for him??