I think my GOldfish may have Ich. There appears to be a few white dots on their tails and fins, nowhere else. The tank temperature is about 78-80 degrees due to the summer heat. The Goldfish don't seem to mind, but I can't make the tank cooler. I've heard of treatments like Quick-Cure being sensitive to light, deadly to fish if used improperly, etc. I want to know what I could do to treat them. They already have salt in the tank, I added around 1/2 of what it's "supposed to be." It says add 1 tablespoon per 5 gallons so I should have 11 tablespoons in the tank, when I only added around 5 tablespoons.