Here's the set up. 4 goldfish. 5 gallon tank with filter, air stone, heater (runs about 74 degrees) and it's still cycling. Two of the goldfish are showing signs I believe are ick. I've had bettas with this but not in a new tank. I hate to add medication to a new tank. One fish has a patch of white one side. Another is developing more of a spotted appearance. Alkaline is around .3, Nitrites are low, ph around 6.4. They are swimming slightly sideways. I wouldn't have even noticed if I didn't obsess over my fish. Is there an alternative to medication that won't crash a new tank?