How do you know when the Ick attack is over? I have had 82F for two weeks and now I'm at the end of first week with 86F. In the beginning one glass-catfish hat a white spot; soon other fish began to have white spots on the fins and on the bodies too - some made the 'flashing'-behaviour. Now I have one glass-cat with a white spot (don't know if it's the same one...), and no other fish with any symptoms. Do I keep the high temp for another week? If the spot disappears from the glass-cat, am I good? How long after symptoms are gone should I keep temps high? Thanks.