Add a little water and natural feel to your terrarium with HydroBalls Expanded Clay Substrate from Zoo Med. These HydroBalls can be used underneath other substrates to create an underground water table. You can add water to create a natural aquifer and increase humidity levels. They also make an excellent substrate for live plant growth and drainage level for waterfall filtration.

• Made of expanded clay for a terrarium substrate
• Helps keep humidity levels up and tank smelling fresh
• Easy to clean and use
• Great for plant root growth and water filtration

Available Size: 1.13 kg (2.5lb)