An FX5 consumes only 48 watts with a 925gph pump which isn't that bad. A similarly sized standalone pump like the Quiet One 4000 (1017gph) consumes 65 watts. And there really isn't a canister filter that's larger than the FX5. Me personally I prefer sumps over canister filters for efficiency but that's a different debate.
It has a pump that at 0' head is 925 GPH but only produces around 350-450 GPH after the filtration and head. And there is a TON of canisters bigger the FX5.
Again what is the advantage of having multiple fx5's over 1 larger canister. This is one thing I just dont understand. Why do people stack the FX5? I think its because of the widely accepted opinion that the FX5 is the biggest/best, when really the FX5 is the smallest of the big canisters.

