I noticed my hawkfish has these white spots around it’s mouth that seemingly formed overnight. It looks a little fuzzy and is blotchy on the lips with an outer ring of spots. It almost looks like an injury but the spots make me think it could be ich. I haven’t added anything to the tank on over two months and the last fish addition was nearly a year ago. I tested water quality this morning and everything looked normal. Any thoughts on what I am dealing with and how I should treat it? The fish is acting and eating normally.