My blue dot puffer has developed this cloudy bluish covering over his eyes and I was wondering if I can use epsom salt to treat it? It has been there for about a week now, and I am noticing him having trouble feeding. Other inhabitants of the 125 gallon tank are 2 perc clowns, foxface, hermits, scarlet cleaner shrimp, xenia, califlower leather, mushrooms, and starburst polyps. I can't seem to find any articles on the net about this or know how much to add if I can. Thanks.

Jenn