I've had really bad experiance with UGF. The wast will build up under the plastic filter and leech into your watter colum causing bacteria blooms. Unlease that what happind to me. I will never use a UGF for the rest of my lidf. You can get a cheap HOB filter for around the same price, and it will do a much better job.
75 gallon, fillstar xp2 with inline reactor, 12 Lb pressurised co2, 4.2 WPG-corallife 3x96 watt PC-, fluorite/silica-sand substright.