So I have a 120 gallon tank with 2 RES. I am running a single fluval 404, but I am tired of dealing with it. I have heard that a sump system is not recommended.
Can someone please tell me why a wet dry sump filter is not as good as a canister? I would like to include bioballs/ammo chips, sponge, carbon, and a heater with a return.
What I would like to do is have a over flow to bring the water to the filer, but also have several returns in different sections of the tank to keep all waste from settling. Please help explain why I should keep dealing with the canisters before I go down this route.

