Eco Earth Loose Coconut Fiber Substrate is a product made from the husks of coconuts and can be safely composted or recycled into potted plants or gardens. This substrate is ideal for all burrowing type animals like box turtles, tropical tortoises, hermit crabs, salamanders, toads, frogs, tarantulas, and invertebrates. It increases humidity and is ideal for naturalistic terrarium type set ups. It naturally absorbs and breaks down odor and waste products. It's also a renewable, environmentally-friendly green product. Create an ideal drainage layer for optimum plant growth, humidity, and drainage in naturalistic terrariums.