I am new to RC and the computer world. Anyway, I have a 210 FOWLR, 2 goldstripe clowns, 1 black clown, 2 fire fish, 1 black sailfin blenny, 1 red hawk, 2 engineers, 1 naso, 1 purple tang, 1 yellow tang, 1 zebra eel, and 1 brazilian eel. The yellow tang has all these little black spots-dots all over. I was told that it is called black ich. So I was wondering if it is really called that and how to get rid of it?