This is a clown I've had for one week. It had some ich on it earlier but that has gone away. Today, I noticed that he was acting strangely and swimming at the surface of the water and he showed no interest to some food I put in. It looks like he is secreting a slime coat or something is peeling off of him. You can see it on this side just under his posterior dorsal fin and behind his gill plate. I don't know if this is something to be worried about or not.