Three or so of my neons in my five gallon tank have a few little spots that look like the beginning of an ich problem. I want to take care of it before it gets worse, or anything dies, but I'm not sure how. Also in the tank are two amano shrimp, and three RCS, along with a baby mystery snail. It's planted, but not too heavily. I'm not sure salt would be appreciated by the fish, or chemicals by the shrimp. Any advice would be helpful. Thanks.