Ring Airstone — Large-Surface-Area Aquarium/Hydro Airstone

Ring Airstone — Large-Surface-Area Airstone for Hydroponics & Aquaria

A circular ring airstone — the larger surface area puts more fine bubbles into your reservoir or aquarium than compact airstones. Simply attach to your air pump via airline tubing and drop into the reservoir. Oxygenates solution, agitates the surface, and releases CO2 buildup. Essential for DWC reservoirs, beneficial for any recirculating hydro system.

Why growers choose ring airstones:

• Larger surface area than compact stones — more fine bubbles per pump output, better oxygenation
• Easy to use — attach to air pump via standard airline tubing, drop into reservoir
• Increases dissolved oxygen — critical for DWC and recirculating hydro root health
• Reduces pythium risk — oxygen-rich water resists root disease
• Releases CO2 buildup — prevents pH drift in sealed reservoirs
• Fits standard airline tubing — universal compatibility across air pump brands
• Can be buried under gravel in aquariums — multi-use across hydroponics and aquatics

Who it's not for:

For tiny propagation reservoirs, a smaller golf-ball airstone is more appropriate. Surface area matters — bigger stones need bigger air pumps to drive them fully; match pump capacity to stone size. Clean periodically (every 4-6 weeks) with a bleach soak to prevent clogging from mineral buildup.

In stock now — ships same working day from our Staffordshire warehouse with free UK delivery over £100. Pick up in-store at our Stone shop (ST15 0SR) if you're local, or click & collect at checkout.