Designed for use with protein skimmers, this wooden bubble stone diffuser enhances the oxygenation process in your saltwater aquarium. The fine bubbles generated by the diffuser improve water quality by facilitating the removal of dissolved organic compounds. Its sturdy wooden build ensures it withstands the aquatic environment, providing functionality. Features -Color:Khaki -Material:Wood -Size:6.50X2.30X2.20cm/2.55X0.90X0.86in -Caliber: 4mm -Exceptional filtration: maintain clear and clean water with efficient filtration, essential for a healthy and thriving aquarium environment -Consistent bubble release: the air stone diffuser provides consistent and even oxygen bubble release, quality and oxygenation -Optimal oxygen levels: ensures an adequate supply of oxygen, crucial for the health and growth of fish and other aquatic plants and animals -Robust components: made from materials, these accessories are easy to replace and maintain, ensuring longterm reliability -Adaptable for all tanks: suitable for use in a wide range of aquariums, including both freshwater and saltwater setups, providing versatility and ease of use Package list: 2 Air Stones