Perfect as a hydroponic, aquaponic, or as a general growing medium. PH neutral, inert and certified for agricultural use. Also great for orchids and decorative purposes, clay pebbles provide excellent aeration and water retention. Time tested and one of the most widely used growing mediums. Expanded clay balls are made from 100% natural clay. They are clean, pH stable and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture and drip feed systems. Due to their unique structure and ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. Expanded clay can be directly used as a horticulture growing media after washing clean. Disclaimer: Only the 48 litre bag is sold in the original packaging. The 12 litre is supplied in a clear bag only.
