I just noticed earlier today that it looks like I might have ich in my tank so i started treating my tank today. Now I've noticed that my new dojo loach, which hasn't been eating in the past couple days, is looking kind of puffy. It kind of reminds me of the way a butter bean looks after the pod dries up. His body kind of swells up in 2 places as you look down the length of it. Does anyone have any idea what this could be and what I should do? Maybe I should quarantine him? I hate the idea of anything else happening to the other fish in my tank.