AquaKing Ø12 cm Ring Air Diffuser – Circular Diffuser Stone for Oxygenating the Tank

Frequently asked questions

• What does the ring shape of the AquaKing diffuser add?

  Its circular geometry, 12 cm in diameter, spreads the bubbles around the whole circumference instead of concentrating them at one point. The water column therefore moves more evenly than with a cylindrical air stone of the same size. It is a closed ring designed for the bottom of the reservoir.

• Why is it important to oxygenate the nutrient solution?

  In hydroponics, DWC, NFT and in any reservoir, dissolved oxygen is what keeps the roots healthy. Still, unaerated water loses oxygen, encourages root pathogens and lets salts settle at the bottom. With the diffuser connected to an air pump, the water stays moving and oxygenated throughout the whole cycle.

• How is it installed?

  Place the ring flat on the bottom of the reservoir and connect the air tubing to its nozzle. The other end of the tube goes to the air pump. Put the pump above the water level or fit a non-return valve.

• Does it come with an air pump?

  No, the diffuser connects to an air pump through aeration tubing, and that pump is bought separately. It works with the air pumps in our catalogue and with the AquaKing submersible pumps for recirculation. Make sure you also have the air tubing.

• What air flow does it need?

  The manufacturer does not publish a recommended air flow or the diffuser material, so we prefer not to make it up. If you are unsure which pump to pair it with, write to us and we will guide you. We are here Monday to Friday, 10:00 to 19:00.

• Which growing systems does it suit?

  It fits hydroponics, DWC, NFT and any nutrient solution reservoir that needs aeration. Its job is always the same: keeping the water moving and oxygenated. If your reservoir is round or has a wide base, the ring shape pays off especially well.