Quote Originally Posted by Kurt View Post
The only freshwater "filter feeder" I know of is the bamboo shrimp. I see them for sale at Petco. What are you expecting them to "filter" out?
Unsafe bacteria and the like? My current filter is currently recovering from having been clogged with dirt. The bottom of my tank has large rocks for the frog to climb on but I'm not sure the water filter can keep it clean if something is growing between the rocks. Not that I'm particularly knowledgeable in the ways of marine life. (I also notice sometimes there is stuff growing in the roots of my bamboo plants. I'm not sure if that's safe or not or how to clean it.)