SYBA Soil - Horticultural sand
Beautiful horticultural grade sand to use in your terrarium substrate mix or soil mix. It improves drainage. A great application for sand is to create a heavier soil for top-heavy plants with weak root systems, like large cacti. Because it is an inorganic material it is also great for cacti and succulents. 

   Improves drainage
   Heavy-weight soil to anchor weak plants
   Great for cacti and succulent soil mixes