Medium Bubbles: The air stone produces dense, abundant bubbles to aerate your water tanks. A great way to increase oxygen solubility in aquariums, fish tanks, or ponds. Jet volume: 15 L/min; Recommended air pump power: > 4W; Standard ID Air Hose: 0.5cm or 0.9cm. Ideal for aquariums, DWC systems, or ponds. Reliable Material: Made of mineral material and sintered at high temperature, it does not cause any effect on the health of your aquatics. Helps maintain healthy fish or root growth. More Float: Measures 10D x 3.8H (cm) and weighs 328g. Its wide, flat bottom keeps it stable in the tank to produce more stable bubbles. Easy to use: Completely soak the stone in water for more than 3 hours before use. Clean it regularly with a brush as it gets clogged after weeks or months of use. 2 Packs of 10cm Air Stones 10cm Air Stones feature durability, stable bubbles, and high dissolved oxygen. Optimal for aerating your water tanks and supporting aquatic life. A must-have for aquatic enthusiasts. Sintered at high temperature, it is well constructed to remain stable in water and produce constant bubbles for fish respiration. Suitable for freshwater and saltwater environments such as aquariums, DWC tanks, and fish tanks. Abundant medium bubbles Pump required: > 4W Compatible with 0.5cm or 0.9cm tubing Stable and durable Ideal for fish and plants Soak for more than 3 hours before first use What kind of air stone should I use? A bigger air stone requires a stronger pump to produce more bubbles. Larger air stones are designed for powerful air pumps and produce better bubble distribution. If a large air stone is connected to a small pump, bubbles will only form at the front of the stone. Small pumps work best with small air stones, while powerful pumps are not recommended for small stones. About shapes The most common shape is cylindrical. Other shapes include disc, globe, and cuboid. Cylindrical air stones come in various sizes and colors. Disc-shaped stones offer stability at the tank bottom, while spherical shapes may produce more bubbles for the same size. 10cm Air Stone Designed for use with pumps over 4W, this air stone is built for continuous operation. Weighted base ensures it remains stable and delivers consistent bubbling performance. Regular medium bubbles With a flow rate of 15 L/min, the air stone produces a steady stream of medium bubbles that enhance oxygen levels in the water. Easy to use Soak the stone in water for more than 3 hours before initial use. Clean regularly to prevent clogging and replace when performance declines.