As soil is never used in hydroponic systems other substrates are required for plants to develop and anchor their origin formation. These cultivating mediums will need to be inert so they don't have an impact on the nutrients within the water solution.
These kinds of substrates also have to be pH neutral, have powerful fluid retention but have space for airflow, and everything is resistant enough to keep and encourage the plant. To know about hydroponic mediums visit http://hydroshop.co.za
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There are many sorts of mediums on the market and the one which you select will be determined by the kinds of products you're trying to cultivate.
Is a sort of volcanic rock composed of silica and generally produced by hydration of obsidian. There are diverse sizes according to what you're growing. It's usually selected to grow cuttings in and then when the plants have grown to a specific size they may need another substrate to grow based on the shape of the hydroponic method you're using.
Coconut Coir / Palm Peat/ coco
As its name implies Cocoa is a by-good of coconuts, with the outer shell of the coconut becoming used while the coconut fruit was detached. It's treated to produce a sort of peat that's ordinarily sold in brick form. It's a fantastic addition to hydroponic systems since it swells after water is added with approximately 6-8 times its initial size.
More or less any hydroponic retailers will be prone to advise about what substrates to use, nevertheless, I've produced a summary of the most frequently used mediums used for hydroponic methods.