i am getting ready to upgrade to a 72 or 90 gal bowfront my question is can i use a megaflow overflow combined with a canister filter? i would really like to have a clean instalation and thought this would be good i'm thinking fluval 405 and maybe an indergravel filter any ideas my budget is small but i do love my fish oh yeah it will be a fresh water setup if that helps thanks in advance for any help