I have a snow flake clown that was purchased with nipped fins and such as he was being picked on. I've been trying to nurse him back to heath, and he was doing good for a while. And then he just stopped eating. He had some growth on him that looked like it might be brook, so I did a long term bath in formalin for 3 days. The growth has disappeared for now, but he hasn't eaten for a couple days now. Any ideas? Today he nibbled at food I put into the tank, but spits it back out. He is swimming well and looks healthy, I've had clowns with brook and he def looks like its either gone or on its way out. Thanks in advance for any help.