Calcined clay (Turface MVP[R]) is a high-fired inorganic substrate that holds its particle structure and allows for excellent longterm drainage, regardless of how long or frequently you mist. Because it is a fired clay, it never breaks down or loses its structure.
It takes approx. 1 Litre of calcined clay to fill the vivarium trough. It takes an additional 1 litre to apply a 1/2" drainage layer beneath an organic substrate.
Please note this is a pre-order and will start to ship in June 2020. Please see our Pre-order FAQ page for more information.