Yesterday, I was feeding and observing my Eastern Mosquitofish school, and noticed a few with spots on them. I immediately thought that they had ich, but I am not sure. Trying to be more safe than sorry, is there any way I can effectivley treat them without spending a lot of money? I quite literally have 4 dollars of spending money at the moment, so expensive chemical treatments are out of the question, as my parents will not pay for fish stuff. I also would like a way to make sure whatever I d0 does not harm my other tank residents, consisting of one salamander larva, clams, snails, and aquatic plants. This is my NC Native tank that got infected. Please help! I'm desperate for some sound advice from the forum!