HydroBalls Expanded Clay Terrarium Substrate can be used as a base layer underneath Zoo Meds 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.
Use Instructions: Add water to create a natural aquifer and increase humidity levels for all tropical species. Add a water pump to the hydroballs layer to create a waterfall and generate water flow through the hydroballs for optimum filtration.