I posted in the past about having ICH in my 47 gallon aquarium. The rosy barbs that all had ICH now are dead all 5 of them eventually died over the past month with the last one dying 2 days ago. All of the other fish look fine with no signs of ICH, 1 cory who was injured in the past appears to have a fin problem but no signs of ICH. Should I leave the temperature up at 84 to 86 still for one more week, we have done several water changes and have vacuumed the gravel and the ich appears to be gone. Anyone have any ideas what to add to help fix the fin on my hurt cory that wont hurt any of the other fish would also be great to hear.