So I've just discovered that all of my Cardinal Tetras in my 55 now have Ich. It's been around a week since I introduced two Rubber-lipped plecos to the tank, and even longer since I've introduced any plants or anything. Besides the Tetras and plecos, I have 6 Albino Cories who haven't shown any signs of anything. How long could the ich have stayed dormant in my tank? I always check my fish while feeding them everyday, and today is the first day I've noticed it.
