General description Each AlwaysH Aquarium Air Stone Cylinder measures 1.5cm deep x 4.5cm high and weighs 20g. These tiny yet well-constructed diffusers are designed for continuous bubbling, making them ideal for small fish tanks or aquariums. They produce medium-sized bubbles, which effectively increase the solubility of oxygen in water, promoting a healthier environment for aquatic life. Technical specifications Dimensions: 1.5cm deep x 4.5cm high Weight: 20g Usage To use the air stone, soak it completely in water for 1 hour before installation. Regular cleaning with a brush is recommended, as the stone may become clogged after weeks or months of use. Other information Made from mineral material and sintered at high temperature, these air stones do not affect the health of your fish, allowing for healthy growth of both fish and plant roots.