Referenced article: http://www.just4growers.com/stream/growing-media/growing-media-101.aspx
A beginner-friendly introduction to grow media for hydroponics. We cover inert growth medium choices such as rockwool / stonewool, grow stones and perlite and other media options such as coconut coir too. We look at how the choice of growing media affects / dictates irrigation strategies—restrictive and non-restrictive growing media.
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