Pikvy premium sand for lawn, garden, plants, construction, aquarium decoration, and any other decoration sit is clean, pure and natural river sand. This sand ideal for cactus succulent bonsai adenium plants for fast drainage. River sand is a product of natural weathering of rocks over a period of millions of years it is mined from the river beds. Sand are one of the most important part of aquarium. They keep water fresh and healthy long and long time by absorbing all the was they work as a good biological filter.