Zeolite fraction 1-2.5 mm is a crystalline hydrated aluminosilicate of alkali and alkaline earth metals Ca, K, Na, Mg of natural origin. It is used as an additive in growing media, in planting, in hydroponic cultivation as a medium, as well as in garden ponds, aquariums, lawns and as a decoration. The microporous material has a positive effect on water quality and plant development.