I know they are not the clearist pics. The fish wont stay still. But it sort of looks like mold on a fish. I have never seen this on a saltwater fish and want to know what it is. He eats fine doesnt seem tobother him yet. The water parameters are has follows; Ammonia-0,nitrite-0,nitrate-10,phosphate-.1, calcuim-480,salinity-1.024.