my ck doesn't seem to be doing good. For about 2 or so weeks he has been very inactive and has lost all appetite. Even when i put feeders in the tank he just lets them swim past him. he has become very thin and t least 3-4 times a day he lays on his side hardly moving and hardly breathing. all my other fish seem to be doing very well execpt him. i have tested my ammonia and nitite and they are both at 0. i have moved him into a smaller tank with a brown ghost knifefish so he wount have much compition for food. does anyone know what could be wrong with him, im afriad i might lose him within the week .