Hey. I have decided that I need to get rid of one or two of my fish. But for right now Im thinking of only one. I cant get my ammonia levels down and the tank is to small. Its between my 6 inch rtc or 10inch clownknive. I know catfish make a ton of bio-waste but he doesnt eat that much. Now my clowknive can eat a lot! Which fish would you get rid of?