Quote Originally Posted by Kurt View Post
Well, fish do not eat feces, so you will need a filter. Filter feeding invertebrates (most of which are marine) feed on small particles of food and not the waste product of other animals. Catfish and loaches will root around in the substrate in search of food and in the process (hopefully) prevent waste from settling there.
Ah. Thanks. I kinda figured they didn't but I wasn't fully sure WHAT they eat.