Zoo Med HydroBalls Clay Pellet Drainage Layer Substrate (2.5 lbs)

HydroBalls Expanded Clay Terrarium Substrate can be used as a base layer underneath substrates to create an underground water table in your pet’s Terrarium. Add water to create a natural “aquifer” and increase humidity levels for all tropical species. Excellent substrate for live plant root growth in Naturalistic Terrariums. Use for filtration for a waterfall.