HydroBalls Expanded Clay Terrarium Substrate can be used as a base layer underneath Zoo Med's Eco Earth® coconut fiber substrate or other substrates to create an underground water table in Naturalistic Terrariums. 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.
![Zoo Med Naturalistic Terrarium Substrate Mesh 12x12 Zoo Med Naturalistic Terrarium Substrate Mesh 12x12](https://cdn11.bigcommerce.com/s-ldfio/images/stencil/500x659/products/1448/192978/original__71869.1721868208.png?c=2)