Title says it, what would be best? I want something that is cheaper, though. UGF is written off unless someone says otherwise. Here is a list of HOB filters for 55s I can find: Marineland ml50363 Penguin Bio-Wheel Power Filter 350 Penn-plax Cascade Hang-On Aquarium Power Filter - for 55 Gallon Aquariums Aqueon Quiet Flow Filter - 90 Gal. Aquatop PFE-6 Power Filter, Up to 55 Gallons Tetra 25775 Whisper Power Filter 60, up to 60-Gallon Tetra 26313 Whisper EX 70 Filter, 45-70-Gallon Rena SmartFilter 55, UP TO 55 Gallons AquaTechPower Filter 30-60 Tetra FS3060 Power Filter I have also seen Lee's premium UG Filter for 40/55 gal, is this any good?