Quote Originally Posted by twitch
so at some point in time the roots will be sitting in the water???
i have never under stood that because in soil grows u can over water them
yet in hydro grows they just sit in active water(active as in moving bubbling)
At pretty much any point, the roots will be sitting in water, that's what hydroponics is all about. The problem with over-watering soil plants is that the roots will rot and/or die due to suffocation. The roots need a constant supply of oxygen and if your pot is full of stagnant mud, they die. The only reason the roots work in something like a DWC setup is because of the aerated water. By using an air pump and constantly aerating/oxygenating your nutrient solution, the roots receive all the oxygen they need.