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Clay ball, cocnut fiber, coir, duckygrows, dutch bucket, Greenhouse, greens, grow medium, Hydroponic, hydroponic method, indoor garden, introduction to hydroponics, Kratky, NFS, NFT, perlite, rock wool, urban farming, Urban garden, vermiculite -

Hydroponic growing mediums have; support the main stem, helps or does not hinder the root system from getting water, nutrients and air. Most anything that does that can make a good medium.  The most traditional and often used in Hydroponics are: Rock wool   Rock Wool is made from rock that is heated, spun ....like cotton candy...into strands then formed into cubes Used in a net cup to support the plant in most systems.  Not useful in flood systems since the rockwool tends to retain too much water It is easy to use for starting seeds.  When the tap root...

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