JW Pet Company 12-Inch Anchorstone Sand Airstone Aquarium Accessory
The super porous surface of the Anchorstone Sand Airstone 12-inch by JW Aquatics produces a constant bubble flow, which adds much needed oxygen to aquariums for healthy fish. With its patented anchor feet, the Anchorstone can be securely placed anywhere in the aquarium without the use of suction cups. The Anchorstone is also wider than other air stones, which results in an abundant wall of bubbles.