Exo Terra Coco Husk Substrate is a natural substrate which is great as a humidity increasing substrate for all kinds of humidity loving reptiles, amphibians and tortoises. The substrate is made from Asian coconut husk which has been compressed. It comes as a 7 Litre block which will expand when water is added.Exo Terra Coco Husk substrate is a very natural substrate for your reptile, amphibian or tortoise and is free from chemicals and pesticides. It will add a natural appearance to your terrarium and stay clean for a long time which will help keep your reptile happy and encourage natural digging behaviours. Regular spot cleans of the substrate will mean a complete change is required less often. Suitable for: Humid / Forest Environment Enclosures Damp Woodland Environments Tropical Reptiles Snakes Amphibians Reptiles Tropical Tortoises