The BRS Universal CO2 Scrubber is a simple way to naturally raise and stabilize your reef aquarium pH. It attaches to your protein skimmer air intake and passes the incoming air through CO2-absorbing media, so the skimmer pulls in low-CO2 air and drives your tank pH up. It is a favorite fix for the low pH that plagues sealed homes, especially in winter. Support your corals with rock-solid pH.Why a CO2 Scrubber Naturally raises and stabilizes reef aquarium pH Removes CO2 from the air feeding your skimmer Fixes the low pH common in tightly sealed homes Color-changing media shows when it is time to refill Works with virtually any air-fed protein skimmer How to Use Connect the scrubber inline on your skimmer air intake Fill it with CO2-absorbing media Watch the media change color as it is used up Refill when the media has fully changed color Specifications Brand Bulk Reef Supply Type CO2 scrubber Function Raises and stabilizes pH Use with Air-fed protein skimmers Media Color-changing CO2 absorbent Pair It With Feed the air intake of your protein skimmer Monitor pH and alkalinity with reef test kits Browse more saltwater gear and corals Frequently Asked QuestionsHow does it raise pH?It strips CO2 out of the air your skimmer pulls in. With less CO2 entering the water, your tank pH naturally rises and stabilizes.Do I need a protein skimmer?Yes. It works by scrubbing the air feeding an air-driven skimmer, which is what carries the effect into your water.When do I refill the media?The media changes color as it absorbs CO2. Refill it once it has fully changed color.
