My Kole Tang seems to have something wrong with his mouth. He is very skiddish and runs to the rocks as soon as he sees me so I can't get a good look at it close or get a picture. Only added him a couple of days ago ate and grazed at the store. From afar he keeps his mouth open and his lips look white and I think he seems irritated by it. He hasn't eaten Nori, Algae wafers, or flakes and he doesn't seem to be grazing but hard to tell. Any ideas? Bacteria, injured mouth, parasite?? Suggestions to get him to eat or treat are welcome thanks