VAYINATO 2 Inch White Carborundum Round Air Stone & 2Mtr Air Tube For Aquarium Fish Tank Aquarium Tool

Features: Ozone aerated stone, bubble stone, using super hard gold steel sand, after high temperature sintering, good gas diffusion, good filterability, ozone resistance, corrosion. Increase oxygen levels, lower CO2 and raise PH, creates water currents It is an important instrument to successfully keep aquatic fish for respiration process. Durable, can be reused and washed repeatedly. Creates bubbles in fish tank while attached to an air pump(air pump and air tube is not included). Note: -Soak in water for 2 hours before use. -For long-term use, if there is dirt blockage, and the bubbles is reduced, please take it out of the fish tank and wash it again and again. -The air stone can be used repeatedly.