Vivarium Naturals – Expanded Clay Nodules Drainage Layer
Vivarium Naturals Expanded Clay Nodules are lightweight drainage media designed for use in bioactive vivariums, terrariums, paludariums, and naturalistic reptile or amphibian enclosures. These expanded clay nodules help create an effective drainage layer beneath the substrate, preventing excess water buildup while promoting healthy humidity levels and long-term enclosure stability.
A proper drainage layer is essential for many tropical bioactive setups, helping protect live plant roots from becoming waterlogged while supporting healthier substrate conditions for springtails, isopods, reptiles, amphibians, and other vivarium inhabitants.
Included Custom-Cut Nylon Separation Screen
Every drainage layer purchase includes a thick nylon separation screen designed to keep substrate and soil layers separated from the drainage layer below.
To receive a custom-cut nylon screen:
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Enter the length and width of your enclosure in the special notes section during checkout
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We will custom cut the screen to fit your enclosure dimensions
If enclosure dimensions are not provided at checkout, we will assume the nylon screen is not needed and it may not be included with the order.
Ideal For
• Bioactive vivariums
• Tropical terrariums
• Dart frog enclosures
• Reptile bioactive setups
• Amphibian vivariums
• Live planted terrariums
• Naturalistic enclosure builds
Why Use Expanded Clay Nodules?
Helps Prevent Waterlogged Substrate
The drainage layer allows excess moisture to collect beneath the substrate instead of saturating the soil layer, helping maintain healthier enclosure conditions.
Supports Live Plant Growth
Expanded clay nodules help create a stable foundation for tropical plants, mosses, vines, and other live terrarium plant species by improving drainage and airflow around root systems.
Improves Humidity Stability
By separating excess water from the substrate layer, the drainage system helps maintain stable humidity levels commonly required in tropical vivariums and planted enclosures.
Lightweight & Long Lasting
Expanded clay nodules are lightweight, reusable, and designed for long-term use in bioactive and naturalistic enclosure builds.
Perfect for Bioactive Vivarium Builds
Vivarium Naturals Expanded Clay Nodules provide a reliable drainage foundation for planted terrariums, tropical vivariums, and advanced bioactive enclosure setups where proper moisture management and healthy substrate conditions are essential.
