Boxtech Aquarium Air Stone, Fish Tank Bubble Diffuser High Dissolved Oxygen Airstones For Air Pump Accessoriess With 1 Check Valve, 2 Suction Cup For Aquarium Pond Hydroponic

High dissolved oxygen: Air stones release smaller denser and uniform bubbles increase the flow and circulation of air in the water double the dissolved oxygen rate in the water and provide a good living environment for fish | Create small and dense bubbles quietly: The air stone bubbler can create many fine bubbles without making too much noise. It provides enough quiet day and night for you and your fish | High-quality material: The air diffuser is corrosion-resistant transparent to light and can be integrated with aquatic plants. Non-toxic good stability can be used in freshwater and seawater tanks | Applicable power of air pump: Air stone needs to be used with air pump recommended air pump power>1.5W. Airstone compatible with 4mm inner diameter trachea (????????: ?????? ???????? ???? ?????? ???????????????? ) | Package includes: 1 nano bubble stone; 2 suction cups to firmly fix the bubble stone to the bottom of the water tank; 1 regulating valve to adjust the air volume as needed