i have a 29g tank with a high bio-load. My filtration is a emperor 280 filter and a protein
skimmer. My
nitrate is at 20ppm. Would adding a canister filter like a fluval 204 help control or lower my
nitrate. Im also using a "polyfilter" in my emeperor 280, anyone heard any good/bad things about using the polyfilter in a salwatertank?
