Heating Cable Hagen ExoTerra 25W — Terrarium Heating Cable, Flexible 25 W

Hagen ExoTerra 25W heating cable is a flexible terrarium heating element delivering 25 watts of low-voltage heat for reptile and amphibian enclosures. The cable can be laid under substrate, hidden behind décor, or attached along enclosure surfaces to create localized warm zones and temperature gradients. It is intended to supplement primary heating devices and to support basking spots or ambient temperature control in small to medium terrariums.

Advantages

The flexible construction allows the cable to be routed into curves and around décor for precise placement of heat. Low power consumption provides a stable, gentle heat output well suited to delicate species and microhabitats. Its design permits installation beneath substrate or along surfaces without taking up visible space in the enclosure. The product supports targeted heating without requiring large fixtures, making it compatible with a variety of terrarium setups.

Suitable for

• Creating localized basking spots for reptiles such as geckos, snakes, and anoles
• Maintaining gentle floor or substrate warmth for amphibians and burrowing species
• Establishing temperature gradients across small to medium terrariums
• Supplementing primary heat sources in glass, PVC, or wooden enclosures

Key specifications

• Power output: 25 W
• Heat type: low-voltage conductive heating cable
• Flexibility: can be routed under substrate or along surfaces to create localized heat zones
• Intended use: supplementary heating for terrarium environments
• Suitable enclosure types: glass, PVC, and wooden terrariums

How to use

Position the heating cable where a warm zone is required, either beneath a shallow layer of substrate, behind décor, or adhered along the enclosure wall following the manufacturer's mounting guidance. Avoid direct contact with animals and provide a thermostatic control or temperature regulator to maintain appropriate temperatures. Use surface and substrate thermometers to monitor conditions and create a gradient by running the cable more densely in the warm end and leaving the cool end free of heating. Ensure electrical connections and any transformer or controller are placed outside the humid zone of the enclosure and protected from water and substrate.

Usage recommendations

Use a compatible thermostat or temperature controller to prevent overheating and to establish precise day/night temperature profiles. Regularly check temperature at animal level and adjust cable placement or power settings as needed. Replace the cable if any damage to the insulation is visible and follow enclosure-specific guidelines for installation beneath substrate to avoid hotspots.