Over the last week I lost two clowns to ICK, I treated the tank with the meds ICK attack and the clowns seemed to be getting better and then all the sudden they died. Also in the evening and before I turned off the lights the clowns looked great and were very energetic and eating and happy. But in the morning when I turned the lights on they always seemed to look alot worse with the ICK and also they were more discolored. Is that normal? Also I have a scooter blenny which was completely unaffected by the ICK and he is doing great!-- Any current suggestions for my tank or is there anyway I could check to see if the ICK is gone? How long do you think I should wait before getting a new fish? Also my water parameters all look good!