Help!! Ich!!

[coolbreezebc]

Hi, my hippo tang (2 weeks since I got it) showed up with a few spots last week , fed it crushed garlic soaked food, and the spots were gone in less than 48 hours. Yesterday added 2 cleaner shrimp and 3 chromis and within a couple hours the tang had over a dozen spots. Tang is eating normally and behaving normally other than the spots. The chromis and 2 percs I have in the tank do not have spots. PLan to continue more frequent feeding with garlic soaked food; any further sugggestions would be greatly appreciated, will try to put up photo later, am new at this!