Medium bubble: The air stone produces dense, rich air bubbles that inflate the tank. A great way to increase oxygen solubility in your aquarium, fish tank or pond. Model: Spray volume: 15L/min; Recommended air pump power: > 4W; Standard ID Air Hose: 0.5cm or 0.9cm. Perfect for aquariums, DWC systems or ponds. RELIABLE MATERIAL: Made of mineral material and sintered at high temperature, it has no effect on your water sports health. Helps maintain healthy fish or root growth. More floats: Dimensions are 10D x 3.8H (cm) and weight is 328g. Its wide, flat bottom remains stable in the tank at all times for more stable air bubbles. Easy to use: Completely soak the stone in water for more than 3 hours before use. Use a brush to clean it regularly as it can get clogged after weeks or months of use.
