HydroBalls, 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 petâ€™s Terrarium. Add water to create a natural â€œaquiferâ€ and increase humidity levels for all tropical species. Excellent substrate for live plant root growth in Naturalistic Terrariums. Use for filtration for a waterfall.