It did not, but I was also running a ClariSea previously so I wasn’t starting a roller from scratch. Without question, the Reefmat caused less skimmer reaction on installation of a new roll (which wasn’t horrible with the CS, but noticeable). I think the rollers generally run the tank very clean and leave less for your skimmer. I’ve actually started to turn my auto advance off most nights during the week to let the tank run “dirty” while the corals are extended and filter feeding. I’d consider turning my skimmer off too, but my tank is in a basement and the skimmer greatly increases my PH pulling outside air AND a CO2 scrubber.