With the pump as the driving force, the power of the gas lift is fully utilized, and there is no power device itself, and there is no noise during work. The rotary design can adjust the bubble size and density, uniform bubbles, small and dense, and achieve good oxygenation effect. The cell board produces bubbles finely. It helps to increase oxygen, maintain fresh air and create a healthy environment for fish. The Aquarium oxygenated bubble stones can add air flow,circulation to your aquarium, pond, hydroponics and aquaculture to oxygenate water and benefit aquatic life. Air stone is made of high-quality plastic material, which is sturdy and durable. All finishes are non-toxic, safe and environmentally friendly.