Zoo Med Hydroballs Lightweight Expanded Clay Terrarium Substrate 2.5 lb. 50 filter case FX Series O-Ring (Filter Lid)

FX Series O-Ring (Filter Lid) is suitable for FX4

and  FX6 High Performance Filters

mold and create multi-level terraces and burrows in your reptile’s terrarium

Yeast By-Products

Vitamin E (α-Tocopherol Acetate) 54 IU/lb

Zoo Med Hydroballs Lightweight Expanded Clay Terrarium Substrate 2.5 lb. 50 filter case FX Series O-Ring (Filter Lid)HydroBalls 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.