Filtration is a Cetus, with 100 micron screen, then the water goes through a 20" 50micron canister filter. These get washed on a daily basis. I fed them twice sometimes three times per day. Hard to say how many pounds of food I'd go through. I do have a question though, on the sides of the pond the plastic has a brown coating on it, algae like. Is this beneficial bacteria, or do I want to scrub it off?
