Zoo Med Hydroballs Lightweight Expanded Clay Terrarium Substrate 2.5 lb. 50 filter case Works best with aquarium population

Works best with aquarium population sizes between dense 130 gal to sparse 250 gal

Yeast By-Products

and  FX6 High Performance Filters

Contains highly digestible marine proteins to reduce excreted waste

Keeps terrarium water around 25°C or 78°F

Zoo Med Hydroballs Lightweight Expanded Clay Terrarium Substrate 2.5 lb. 50 filter case Works best with aquarium populationHydroBalls Expanded Clay Terrarium Substrate can be used as a base layer underneath substrates to create an underground water table in your pets 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.