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Growing Medium


Growing medium is simply what the roots of the plants are growing in. This can be a vast variety of materials, including Rockwool, Perlite, Vermiculite, Coconut Fiber, Gravel, Sand or any number of other materials, even air can be a growing medium. The growing medium is an inert substance that doesn’t supply any nutrition to the plants, all the nutrition comes from the nutrient solution (water and fertilizer mixed). You can therefore easily control everything the plants receive, the strength and  pH of the nutrient solution is easy to adjust so that the plants receive just the right amount of nutrient and water. The watering cycles can be simply controlled by an inexpensive timer so that the plants get watered when they need to be.

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