The basic and most popular types of hydroponic systems include the following methods. Even though there are hundreds of variations on these basic hydroponic systems, all are based on one, or a combination of the following:
Ebb and Flow - sometimes called flood and drain hydroponics, works by temporarily flooding the grow bed in intervals, according to a set timer and pump. The pump floods the plant roots with nutrient solution for a few minutes and then shuts off, draining the nutrients back into the tank and providing a rush of oxygen to the plant roots.
