Agreed, most of my tanks have about 3-4 times the "recommended" filtration levels and I believe the fish are happier because of it. Might end up with an FX5 and AC110 then add a tank, move the AC110 and replace with another FX5 as the fish grow.
Great advice, thanks all!
8 tanks running now:
1x 220 gallon, 2x55 gallon, 1x40 gallon long, 1x29 gallon, 1x20 gallon long, 1x5.5 gallon, 1x2 gallon
Gouramis, barbs, rasboras, plecos, corys, tetras, fancy guppies, swordtails, ottos, rainbow shark, upside-down catfish, snails, and Max and Sparkles the bettas.