Product Title: Mother Earth Hydroton Original Clay Pebbles – 25 Liter, Lightweight Expanded Clay Aggregate Description: Origin: The original Hydroton brand expanded clay is a lightweight aggregate made in Germany from natural clay. Production: Mined clay is formed into pellets and kiln fired at high temperatures to expand into lightweight balls. Properties: The clay offers balanced capillary action and a suitable surface structure. Features: Hydroton expanded clay is semi-porous and doesn’t typically float. Preparation: Rinse before use for best results. It can be reused if cleaned thoroughly between uses. Size: Specifications include 8-16 mm pebbles.
