[Quietly Generate Small Bubbles] This aquarium air stone can quietly generate a very dense cloud bubble /p> [Dual Oxygen Dissolution Rate]Perfect for increasing oxygen levels, reducing carbon dioxide and increasing pH for your hydroponic growing system [Easy to use]2 suction cups ensure the air stone sticks firmly to the tank Durable and perfect for home aquarium, office, hydroponic nutrient tank [ Adjustable] If you need very dense clouds with small bubbles, please adjust the air pump manually. The air volume of this nano aquarium bubbler can be adjusted by a control valve
