Air Pump Accessories: Aqua Ball Stone set includes 45mm nano air plate with converter + suction cup + 2m air tube (Note: air pump not included). Perfect for your fish tank or fish tank and a great companion air pump. Very quiet: The high-quality inflatable diffuser aquarium stone has a very porous structure and its high breathability is impressive. Very dense clouds of small bubbles can be produced silently. When the air bubbles burst in the water, the noise is reduced. Many small air bubbles are created inside the aquarium, creating an iridescent effect. Adjustable Bubble: If you need a very dense cloud of small bubbles, please adjust the air pump manually. The air volume of the aquarium nano bubbler can be adjusted by the control valve, the air volume of the aquarium nano bubbler can be adjusted by the control valve, the air bubbles released by the air stone are smaller, denser and more uniform, suitable for aquarium, fish tank, brocade Fish in carp pond. Easy to Install: With suction cups, the bubble diffuser balls adhere firmly to the tank, and won't take up much space or reduce fish habitat. Durable and perfect for home, office aquariums, aquariums and fish tanks. Hydroponic nutrient reservoir. Note: Before using the vent, please soak it in the fish tank for two hours to allow the vent to fully react with the water. The shape of the disc allows optimal air distribution and stability. Materials not toxins are also used to ensure the safety and health of fish.