Cocopeat is powder from crushed coconut. Cocopeat is very useful for use as an organic hydroponic growing medium. Cocopeat can absorb and retain water and contains chemical elements, such as Potassium (K), Calcium (Ca), Magnesium (Mg), and small amounts of other elements. These elements are usually present in concentrations that are not too high and are not considered harmful, so they can be used as a growing medium in nursery activities, by mixing with soil or as a soil substitute. Because it has pores that allow air exchange and sunlight to pass through, cocopeat can keep the soil loose and fertile.