Small but strong: each cylinder measures 1.5 x 4 cm and weighs 15 grams. Small but well built for continuous bubbling. Ideal for small aquariums or aquariums. Medium bubble: The Airstone cylinder produces a large number of dense bubbles. Great way to increase oxygen solubility in water and active aquatic life. Model: ASC-030; Injection volume: 1.3L/min; Standard ID Air Hose: 0.5 cm Recommended pump power: 2 W - 4 W. Also ideal for inflating DWC systems in small gardens. RELIABLE MATERIAL: Made of mineral material and sintered at high temperature, it will not cause any harm to your aquatic health. Keep fish or roots healthy. EASY TO USE: Carefully soak the stone in water for 1 hour before use. Use a brush to clean it regularly as it can become clogged after weeks or months of use. Box contents: 10 cylinder Airstone, 1.51.54cm
