Humidity is an important aspect to any Hermit Crab habitat. All Living Things has created a special coconut fiber soil, perfect for Hermit Crab burrowing, that also retains plenty of moisture within the habitat. A PetSmart exclusive. Features: Packaged in a stay-fresh compressed method, this soil is suitable alone or mixed with Hermit Crab sandEnvironment Type: Hermit CrabSpecies: Hermit CrabColor: BrownDirections: Place the compressed disk into a bowl or bucket, add approximately 16 ounces of water, and allow to expand for about 30 minutes. Place into the enclosure/habitat to increase humidity.