Supply your aquarium with plenty of air bubbles for improved aeration and water movement with our Planted Aquaria 20mm Diameter Air Stone. Designed to efficiently diffuse air for increased surface agitation. Promotes proper gas exchange to accelerate oxygen replenishment and reduce carbon dioxide buildup. Fits standard airline tubing.

• Aquarium airstones provide decorative and functional air bubbles
• Introduces vital oxygen into aquarium water to increase oxygen for your fish
• Increases surface agitation for proper gas exchange – also helps reduces CO2 buildup (useful at night for when CO2 and Lighting is off)

We carry one size which is 20mm Diameter only.