so my first post was for a 55, well for free on CL, they had a 75 gallon, so I want to stay away from the canister filters at all cost, dont want powerbill to go up, and they are not my fav filter anyway, so a angelfish based 75, would a Emp 400 and a tetra 40 gallon filter be enough, i have 2 EMPs but for power bill sake, would this be good.