well Realisticly there is no cure... it will always be there once it's there unless you just change tanks pretty much... It will always be there in the sand, rocks, plantlife, ect.... It is brought on when fish get stressed and the ich overcomes them. Crappy but it's just like when humans stress they are more vonerable to get sick! Although Garlic has helped me and a few others I know some of the fish just get chased around too much and get picked on. Hope you guys have luck with getting rid of it or a cure! that would be real nice.