I have a Powder Blue Tang that seems to be developing some sort of fungal infection. I first thought that my Purple Tang had tagged him in a fight. Its a tiny spot that is grayish in color and raised from body. I feel like scraping it off with my fingernail. I was wondering if there are any medications out there that is safe to use in a coral tank? Should I just try soaking food in garlic extract to maybe boost his immune system? Any suggestions would be appreciated


