I bought a pair of small clown loaches about a month ago. 1 of them is doing great, and has grown about .75 inches in that time. The other is not doing so good. He is very skinny, and lies on his side on the bottom all the time. I recently had ich in the tank, and treated it with high temps and ich-attack, which worked well. There is 0 ammonia, but I am not sure about nitrites or nitrates. Ph is about 8, water temp is currently about 80 degrees. However, he was having problems before the ich, he never really ate. Any idea what I could do to get him to start eating?