Alrighty I went and bought this stuff... Ick cure, other than aquarisol that's all they had, because for aquarisol you have to raise the temperature and for this stuff you don't have to. I guess it's sposed to take 2 days, but we'll treat him a bit longer than that. Let's hope for a speedy recovery! Btw, the stuff makes the water all blue... and he seemed to slow down and just lie there... hopefully he will be alright.