Quick Cure is good stuff for this, however i saw you didn't post your Ph. It is important when choosing the correct meds. Ich can and will kill the fish if not treated. Sometimes salt and heat doesn't work depending on the severity of the out break you may have to go to meds. I like to try treating without them but when necessary you may have to go the medacation rout. This isn't fungus. The Quick Cure will get this, you should always do a large water change and vacuming of the sub strate before administering meds to get as much of the Ich out of the tank as possibile.