Zoo Med HydroBalls Substrate | Lightweight Clay Drainage

The Zoo Med HydroBalls Lightweight Expanded Clay Terrarium Substrate is a versatile, natural base layer designed to improve drainage, humidity, and air circulation in all types of terrariums and vivariums. Made from expanded clay pebbles, HydroBalls provide a lightweight, porous foundation that promotes healthy root growth in live plants while preventing stagnant water and substrate compaction. Ideal for use in bioactive, tropical, or rainforest enclosures, HydroBalls can also be used in waterfall setups or beneath terrarium substrates to create an efficient drainage layer. This substrate helps maintain consistent humidity levels — perfect for reptiles, amphibians, and live plants that thrive in moist environments. Durable, reusable, and eco-friendly, Zoo Med HydroBalls are an essential component of any naturalistic habitat setup.

Key Benefits:

• Promotes Drainage & Airflow – Prevents waterlogging and keeps substrates fresh and breathable.
• Supports Humidity Control – Helps maintain consistent moisture levels in tropical and rainforest setups.
• Ideal for Live Plants – Encourages healthy root growth and prevents root rot.
• Multi-Purpose Use – Suitable for bioactive terrariums, waterfalls, and false-bottom systems.
• Reusable & Natural – Eco-friendly, lightweight, and long-lasting clay material.

How do I use HydroBalls in my terrarium?

Simply add a 1–2 inch layer of HydroBalls at the bottom of your terrarium, cover it with a mesh layer, and then add your preferred substrate on top. This setup promotes proper drainage and airflow.

Can HydroBalls be reused after cleaning?

Yes! Rinse and sterilize HydroBalls thoroughly before reuse to remove any debris or organic matter, making them safe for multiple terrarium cycles.

Shipping & Returns

• Shipping: For more information on our flexible shipping options, visit our Shipping Policies.
• Returns: For assistance with returns or replacements, review our Refund Policy.

FAQ

What is Zoo Med HydroBalls Lightweight Expanded Clay Terrarium Substrate?

It’s a natural, lightweight clay substrate made of expanded clay pellets used to create drainage layers in reptile, amphibian, and tropical plant terrariums.

What are HydroBalls used for?

They’re placed as a bottom layer beneath soil or moss to improve drainage, prevent stagnant water buildup, and maintain proper humidity in the terrarium.

What are HydroBalls made of?

They’re made from natural clay that’s heat-expanded into porous, lightweight pellets that absorb and release moisture efficiently.

Can HydroBalls help control humidity?

Yes, the porous clay retains water and slowly releases moisture, helping to stabilize humidity levels in tropical and rainforest setups.

Are they safe for reptiles and amphibians?

Yes, HydroBalls are completely safe for all reptiles, amphibians, and live plants when used as directed.

How do I use HydroBalls in my terrarium?

Spread a 1–2 inch layer at the bottom of the tank, then place a mesh barrier or screen on top before adding soil or substrate layers.