Alfred’s Air Diffusers are essential for keeping your plants healthy! When combined with an air pump and tubing, our air diffusers perform the vital role of circulating the water and replenishing the oxygen in your nutrient solution. Proper aeration will bring oxygen to the submerged roots, allowing them to “breathe” underwater. The replenished oxygen helps to keep your roots healthy, promotes nutrient uptake, and increases the lifespan of your nutrient solution. As the tiny bubbles created by the air stones float to the top, the oxygen bubbles transport toxins from the nutrient solution to the surface for dissipation.