The grow tray is where the plants sit, so choose one that drains well and fits your reservoir and pump. DepthThe tray must be deep enough for the roots and the medium, but not so deep that it stays wet. Check the manufacturer’s guidance for your plants....
An ebb and flow system floods the grow tray with nutrient solution and then drains it back to the reservoir. A timer controls the pump, so the timing matters. How long to floodFlood long enough for the medium to soak up solution, then stop. Medium that holds water...
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Practical articles on hydroponic systems, nutrients and growing specific plants, written for beginners and home growers.
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