Use air stones and diffusers for your hydroponics and aquarium system. Air stones hooked up to air pumps help oxygenate the water they are immersed in, which leads to better oxygenation to the root zone and faster, more vigorous growth of your plants. You can even oxygenate your reservoir or nutrient tank prior to watering your plants for max growth potential. Air diffusers work well in Ebb & Flow, Deep Water Culture (DWC), Flood & Drain, Aeroponic Reservoirs, and more.