[pogodzib]

There are only two ways that are guaranteed to get rid of ich. One is treating with copper and the other is treating using the hyposalinity method. Both ways need to be done in a q-tank. Most reef-safe additives are either not truely reef safe, use chemicals that don't fully work at riddign ich, or help boost a fish's immune system, which may or may not help, but it won't get ich out of your tank.

Do a search here for ich treatment, copper, or hyposalinity and you should find some good posts. Additionally, take a look in the illness area of the RB Library.