INDIA

If you are planning to make a garden with the help of hydroponic technique, then you would be aware of the fact that a variety of mediums can be used for this purpose. The medium may have gravel, coconut fiber, sand, vermiculite, perlite etc. Air can also be used as a medium for hydroponic growing. The hydroponic medium is not supposed to provide nutrients to the plants. Their work is to provide support to the roots of the plants.