Root systems require oxygen for aerobic respiration. Reduced levels of oxygen in the rootzone, slow down plant growth and increase susceptibility of diseases. Indoor grown plants in closed water systems have often a lack of oxygen and need additional oxygen supply. By delivering ultrafine bubble to the rootzone of the plant, you increase the levels of oxygen and the water get negatively electrically charged this promotes nutrient uptake and hair root growth. Read the whole article to see what experience cannabis growers have to say about the ultrafine bubble system.