My friend got me a black moor the other day. He's quite small and in a ten gal tank by himself for now (upgrade this summer, and some fancy friends) I noticed he has a small tear in his tail with some white fungus/mold/rot stuff on it, and a bit on the base of his tail. I read that salt can cure it, what kind and how much, or what else would work? I have a bunch of other goldies, but this is my first fancy, and my first encounter with this problem. Thanks for any help.