We only use carefully selected substrates from around the world from sustainable, renewable sources that are then heat treated and sanitized. Some of the substrates will work wonders for pets that dig and burrow, while other substrates are just for walking on. Reptiles are found in typically three types of habitats around the world; desert, rainforest, and semi-aquatic and whichever type of reptile, Pettex has the ideal substrate available. Coco Fibre Coco Coir Fibre is a 100% natural substrate. These substrates are ideal for creating natural looking environments for your vivarium. The soil is absorbent simple mist or spray to create humidity, coconut bedding will hold and maintain moisture better than any other bedding and also makes an invaluable incubation medium, as well as a natural planting substrate for live plants. 10 lt Packs.