Not sure if this guy is damaged or just having a bad couple days. I've only had him for a couple weeks but he has this area on the right side where he it's expanding much and you can see black spots or areas at the end of a few of the polyps. Should I be concerned? He looks fine otherwise. I do have a couple of clowns that were recently added and one of them likes to try to nuzzle up in there but never stays long. Any thoughts?