i found my Hippo in my 220 was scratchin on the rock, after examing him i found little white dots which appear to be ich, the only other guys in the tank are a YT and 8 Chromis, none which seem to have symptoms. The Hippo is eating Nori, Brine, and Flake and seems to be happy, with the exception of the occasional scratchin of the rock. I have the Garlic Kent additive which i soaked my brine in and the hippo loved it, the ich has spread a little more over his body, im pretty new to the ich stuff, so what should i do now?