Expanded clay or lightweight expanded clay aggregate (LECA) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln.
Common uses in horticulture are in hydroponics, aquaponics and hydroculture.
Expanded clay
Expanded clay or lightweight expanded clay aggregate (LECA) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln.
Common uses in horticulture are in hydroponics, aquaponics and hydroculture.