Zoo Med (2 Pack) Eco Earth Loose Coconut Fiber Substrate for Reptiles 8 quartsEco 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. Add Eco Earth loose coconut fiber substrate on top of Zoo Meds HydroBalls to create an ideal drainage layer for optimum plant growth, humidity and drainage in naturalistic terrariums. Ideal for naturalistic terrarium type set ups incorporating reptiles, amphibians or invertebrates Use it damp for