I think y'all missed that 2 of the goldfish were "isolated" (to me this means removed to a hospital tank). Please reas this article on ICH http://www.aquariacentral.com/forums/showthread.php?t=39759 the entire tank needs to be treated. Even with no visible white spots, ich can live in your tank as long as thier are fish in it. But really, the "mabey someday Ill upgrade whn they are 6 inches" shows us you really dont care for the fish, despite all everyone has told you.