I have a Clarisea on my 90 and it only lasts about 3 weeks and is not that easy to change, not near enough filter floss in cartridge because center ring is so large, yet the size of a roll of toilet paper. Had a Thielling Roller mat on another system that Phil now has and it lasted for 3 to 4 months, much larger roll that lasted a very long time in comparison.
On my large system I have purchased a SeaVisions Commercial roller, but have not put online yet, I do like the idea behind the roller yet make sure the roll is long enough to give it value.
A quick note my wife feeds very heavy so my rollers will not last as long as others.
I have purchased a SeaVisions Commercial Roller system for my 400, but have yet to make the modifications to put online and have run sock less for about 6 months. My sump is filthy and my Nitrates are creeping up, did 350 gallons of water change in last 10 days and dropped it from 40 to 20 Nitrates. I need to thin out some fat fish!