Best Crops for HydroponicsHydroponic Beans Hydroponic BeetsHydroponic BasilHydroponic Blueberries Hydroponic Bok ChoyHydroponic BrocolliHydroponic CarnationsHydroponic CarrotsHydroponic ChivesHydroponic Corn Hydroponic CucumbersHydroponic FlowersHydroponic GarlicHydroponic LettuceHydroponic Micro-GreensHydroponic Mushrooms Hydroponic PeppersHydroponic PotatoesHydroponic RadishesHydroponic Raspberries Hydroponic SaffronHydroponic Strawberries
Flood and Drain systems also known as Ebb and flow systems supply water and nutrients to the plants by periodically flooding the bed / grow tray. The water / nutrient solution is stored in a reservoir and the water is continuously drained back back and forth from reservoir and the root zone / grow tray at predetermined intervals.
The grow bed should be level and uniform for the even distribution of the nutrient solution. Lopsided uneven beds / tray create multiple problems. Some roots can become too saturated and not drain adequately, leading to rot and poor oxygenation. Other roots will not receive adequate moisture and solution which leads to nutrient deficiencies.