Ick disease is very common in aquariums these days. The regular Ick treatment that you can get in the stores is such a joke it doesn't work. If you can't remove your fish to a separate tank and let the main tank stay bearing for at least a month the ick will survive. The first thing to do is to turn off the lights to the aquarium raised the heat to 84 degrees and make sure that you have super aeration to the tank. I didn't want to do this but I had to to try to save our fish. I added copper to the tank closely following the manufactures warnings and I am in hope that this kills the Ick for now.