Buy a packet of high-quality, imported Vermiculite, by Gulf Perlite UAE. The packet weighs about 800-900 grams and contains 10 liters of Vermiculite.
Vermiculite is used to improve water retention, drainage, and aeration of potting media. Compared to Perlite, it provides better water retention while Perlite offers superior aeration. It can be used standalone as sowing media for seeds or in potting mix for general purpose use.
Expanded vermiculite is best for seed germination both as stand-alone substrate/media or in a potting mix.