What hydroponic growing medium should I use?

If you are using an aeroponic or deep water culture system then you are limited to, Rocks or rocklike media and Rockwool (best with a Perlite mix). If you are using a drip or ebb and flow system or even growing in a garden, soil is king in my opinion (not all soils are created equal). If you are using a drip or ebb and flow system or even growing in a garden, soil is king in my opinion (not all soils are created equal). They all work well once “dialed in”. Soil: Less Nutrients needed, more forgiving to watering and pH. Coco Coir: Holds water well. Leaches more easily than soil. Rockwool: Plants can grow a bit faster than in soil. Rocks/Rockish: Plants grow fastest, you will need to water all the time.

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