I'm probably going to get yelled at and called a noob, but I am so anyways, My channel catfish's eyes have been popping in and out. I've never had this happen to any of my fish before, so I'm not sure what it is, or what to do about this. It just started happening recently. Some days they do it alot, some days not at all. Sorry for my noobness guys. I'd appreciate all the help I can get.