Eco Earth Coconut Chips is a Natural coconut coir substrate made from an eco-firnedly, renewable resource. Great for bioactive and naturalistic terarriums. Coarse pieces increase aeration, resist compaction, and allow for drainage. Long-lasting and naturally mold-resistant. Absorbs and retains moisture up to 8x its dry weight in water! Use with reptiles, amphibians, and invertebrates.