AF Air Scrubber Media is a specialized filter media designed to maintain stable pH levels in saltwater reef aquariums. It effectively absorbs excess carbon dioxide from the air entering your system, directly addressing low pH caused by high CO2 concentrations that can seriously impact coral growth and overall system health. This color-changing media boasts excellent carbon dioxide absorption properties, efficiently raising pH levels and preventing large, harmful swings in your saltwater aquarium. Composed of white, dry pellets, it is specifically designed to tightly fill the AF Air Scrubber reactor chamber while maintaining optimal airflow for maximum CO2 removal. It can also be safely used in conjunction with other carbon media. Ideal for dedicated reef keepers focused on optimizing water parameters, this media is essential for systems where stable pH is critical for coral vitality and growth. Regular replacement of the color-changing media ensures consistent CO2 absorption, guaranteeing a more stable and healthy environment for all inhabitants within your saltwater aquarium.