Substrate for desert terrariums.Key Features:• For desert terrariums: natural substrate made of fine red sand, grain size: 0.1-0.2mm.• Fine, virtually dust-free sand which, in moist condition, can be easily formed into caves etc., and keeps its shape after drying.• Fine grain encourages the natural digging behaviour of many species.• Round grain shape reduces abrasive effect on the animals’ skin.