Tiny but durable: each cylinder measures 2 x 3 cm and weighs 20 g. Tiny but well built for continuous bubbling. Ideal for small aquariums or aquariums. Medium bubbles: The air stone cylinders produce a good amount of dense bubbles. A great way to increase oxygen solubility in water and enliven aquatic life. Also ideal for aerating DWC systems in small gardens. Reliable Material: Made of durable material mineral and sintered at high temperature, it does not cause any effect on the health of your aquatics. Keep fish or roots healthy. Easy to use: soak the stone completely in water for 1 hour before use. Clean it regularly with a brush because it clogs after weeks or months of use.
