Coke Can Airstone

Coke Can Airstone – Hydroponic Reservoir Oxygen Diffuser

This coke can airstone is a popular hydroponic air diffuser designed to increase oxygen levels in nutrient reservoirs. Named after its familiar cylindrical “coke can” shape, this style of airstone produces a steady stream of fine bubbles that help keep nutrient solutions oxygen-rich and properly circulated.

When connected to an air pump, the coke can airstone disperses air evenly through the reservoir, helping support healthy root development in hydroponic systems.

Key Benefits

• Improves dissolved oxygen levels; helps keep nutrient solutions properly aerated
• Fine bubble output; increases oxygen distribution throughout the reservoir
• Coke can design; stable cylindrical shape sits securely on the base of tanks or buckets
• Easy to install; connects directly to standard air line tubing

Why You Need Coke Can Airstones

Roots require oxygen to function properly. In hydroponic systems where roots sit directly in nutrient solution, maintaining good dissolved oxygen levels is essential for healthy plant growth.

A coke can airstone connected to an air pump continuously releases bubbles into the reservoir, helping oxygenate the solution and keep it moving. This creates a healthier root environment and helps support strong plant development.

How to Use Coke Can Airstones

1. Connect airline tubing: Attach the airstone to your air pump using standard air line tubing.
2. Place in the reservoir: Position the coke can airstone at the bottom of your tank or bucket.
3. Switch on the air pump: The stone will begin producing bubbles immediately.
4. Maintain regularly: Clean or replace periodically to maintain strong airflow.

Top Tip: Use a powerful air pump when running larger coke can airstones to produce finer bubbles and maximise oxygen levels in your reservoir.

To see our full Air Pumps & Airstones range, click here