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The fact that nutrient film approach hydroponics has many advantages other soil culture, but the largest may be the truth that the root method in the plants have constant access to oxygen and that plants have access to as much or as small water as they need, this really is essential as one of the most widespread errors when growing is over/and under watering, and that hydroponics prevents this from occurring as massive amounts of water may be made available to the plants roots and water that is not utilized simply drains away, recalculating after which actively aerated, which eliminates anoxic conditions which can trigger problems in root systems.