Utoolmart 5 inch Aquarium Air Stones Disc, Fish Tank Airstone Bubble Diffuser for Aquarium Fish Tank Ponds and Hydroponics Air Pump

【Medium Bubbles】- The air stone can produces abundant dense bubbles to aerate your water reservoirs. A great way to oxygenate your hydroponic growth systems and enliven the aquatic life.
【Reliable Material】- Made of mineral material and sintered at a high temperature, it causes no effect to the health of your aquatics.The material is sturdy and durable which is safe to your fish.
【Stable in Water】- Measures 5.1" D x 0.8" H and weighs 9 oz, which helps it sink to the bottom easily. Inner diameter of tubing: 0.19" / 4.7 mm or 0.31" / 8 mm.
【Easy to Use】- Soak the airstone completely in water for about 1 hour before connecting to an air pump to run it. Clean it regularly as it gets clogged after weeks or months of usage.
【Widely Applicable】- Suitable for hydroponic systems, circulation systems, aquariums fish tanks and other systems, helping extend the life of your nutrient solution, keep fish or roots healthy and promote plant growth.

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