This Bedding is a soft, fibrous substrate that is suitable for many species of snakes, tortoises or mammals. Highly absorbent, dust free and odourless it is 100% natural and biodegradable. DIRECTIONS: Spread the substrate evenly over the bottom of the enclosure to a depth of at least 1-2" (2.5-5cm). Spot-clean daily and completely replace every two or three weeks or more frequently if it becomes heavily soiled or wet. If you are using an under-tank heat mat as your heat source do not use a thick layer of Hemp Bedding as this may cause the heat mat to overheat. Please refer to the heat mat manufacturers instructions for more information.