I know its called itch or somethign, I added 2 RAms in my tanks a weekk go, now one of them has a lot, and 4 of my 6 neons, definitly have, the loach seems untouched,i'd liek to solve this in a natural way.Can I . Temperature at the moment is 31 degrees.I feed once daily.and light is on from 830 in the evening till 6 or 7 in the morning. I have fresh plants as well.