Aquarium Air Stone for Air Pump Submersible Pump Power Head Silicone Hose fish tank Bubble Producing

 We accept returns if the item is not yet worn or used. 100% brand new and high quality,Increase oxygen levels, lower CO2 and raise PH. It is an important instrument to successfully keep aquatic fish for respiration process. Durable, washable and sintered by high temperature. Creates bubbles in fish tank while attached to an air pump(air pump is not included). Creates water currents and dazzling underwater scenes. Color: Gray Material: Mineral Stone + Plastic Item Size: 7cm/10cm/15cm Suitable for inner diameter 4mm soft tube. Before use, please immerse it in the water for 15 minutes. It it doesn't have bubbles in one part, please change the pump of higher power. It will not work as normal if you attach to the submersible pump. Package List: 1 * Air Bubble Stone Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. *Feedback* 1.Please give us the opportunity to resolve any problem.