My freind is looking at changing his 3'x15"x18" fresh water to cichlid next weekend and he has been given a second 1200lhr canister,would hooking them together so the water flows into the first one full of filter wool and then into the second one full of bio-media be a good idea,just thinking the first one would keep the second one full of bio-media cleaner longer and bo a better job, have seen one done this way on one of the sites quit a while back or just run them sperate. thanks.
8) The full benifits of the closed seperately powered filter systems will be negated by linking them together. If you want to run a modular type setup, use passive canisters w/ a dedicated pump to power the water thru all the cans. "T"