Two weeks ago I added a new yellow tang too my tank and he looked great. He didnt eat for a day and a half, and now he eats constantly. I noticed that he was rubbing his right side on the live rock, now two weeks later he has some blotch marks on his side behind his eye and forward of his gills. Today I noticed that he has a white film over his rt. eye, very cloudy. What do you think this is, and what can I do too help my tang? My water parameters are awesome. very ex.. water quality.