Exo Terra Big Rock Small Ceramic Cave with Lid PT3192 | Reptile Hide

The ET Big Rock Small Ceramic Cave with Lid is a hygroscopic ceramic hide designed for reptiles, amphibians, and invertebrates kept in vivariums or terrariums. Without a reliable hide, reptiles are prone to chronic stress that disrupts feeding and long-term health — this cave addresses that directly by providing a secure, humid retreat that supports thermoregulation, hydration, and the shedding process.

How the Ceramic Works

The ceramic material has natural hygroscopic properties, meaning it actively absorbs moisture and releases it slowly back into the microclimate inside the hide. This passive regulation keeps humidity and temperature more stable than plastic or resin alternatives, and reduces the sharp fluctuations that can cause respiratory issues in sensitive species.

Built-In Water Reservoir

A dedicated water reservoir sits within the hide and should be kept filled at all times. This is what sustains the moist microclimate — the ceramic draws from it continuously, maintaining conditions that aid skin hydration and a clean shed. The small size has a water capacity of 20ml, making it straightforward to maintain.

Removable Lid and Egg-Laying Use

The lid lifts off entirely, giving you direct access to check on animals or remove an egg clutch without disturbing the rest of the setup. Packed with moistened moss — forest moss or sphagnum both work well — the cave doubles as a viable egg-laying site for a range of reptile, amphibian, and invertebrate species.

Dimensions and Terrarium Integration

• Small size: 8cm (H) x 11cm (W) x 13cm (D)
• Water reservoir capacity: 20ml
• Natural rock appearance integrates cleanly into soil, bioactive, or bark-based setups
• Suitable for use in any terrarium or vivarium layout

For keepers who want a hide that genuinely contributes to animal welfare rather than simply providing cover, the ET Big Rock Small Ceramic Cave delivers a practical, low-maintenance solution backed by the material science of ceramic humidity regulation.