Galápagos Hermit Crab Substrate is a perfect mixture of Tropicoco® Soil and sand. Designed to mimic their natural environment, this time-tested substrate helps maintain humidity and encourages natural burrowing. Digging and burrowing is essential for a healthy Hermit Crab because it promotes molting hormones and provides them with a feeling of safety. Comes in a resealable stand-up bag to prevent spills and keep your extra substrate clean. Ultra-Soft: Comfortable Bedding Ideal Mixture: of Sand/Coconut Soil for tropical crustaceans Great for Burrowing: Extends darkness and stimulates hormones to aid in shedding Diggable: Allows animals to create elaborate structures and deep holes High Absorbency: Coconut Soil helps to control tropical humidity Resealable Stand-Up Bag: Keeps extra substrate clean and spillproof Available Size: 4QT