Natural coconut husk substrate packed into an efficient 500g block, which just needs water adding to break it apart before adding to a terrarium or vivarium. This is designed to absorb water and then release it over time when heated, so is ideal in rainforest enclosures to give a steady amount of humidity for reptiles and spiders, though you will still need to mist as well.

This substrate can easily be placed in an enclosure, either as the main substrate, or used on top of a soil based substrate to help to hold in the humidity further. It is completely natural, so gives a great look to planted enclosures, and is also suitable for bio-active set ups as well.