Why Humidity Is Everything for Crested Geckos

Crested geckos (Correlophus ciliatus) are native to the tropical forests of New Caledonia, where humidity regularly exceeds 70%. Replicating this in captivity is one of the most important aspects of their husbandry.

The Target Range: 60-80%

Aim for 60-80% relative humidity throughout the enclosure. A brief drop to 50% during the day is acceptable. In fact, a "wet-dry cycle" (misting heavily at night, letting it dry during the day) mimics natural conditions and prevents respiratory issues.

How to Achieve Proper Humidity

• Mist the enclosure once or twice daily, focusing on the walls and plants rather than directly on the gecko.
• Live or high-quality fake plants hold moisture and raise ambient humidity.
• Coconut fiber or a bio-active substrate retains moisture far better than paper towels.
• Screen tops release humidity quickly. If your enclosure struggles, cover 50-70% of the top with glass or acrylic.

Monitoring Humidity

A digital hygrometer is non-negotiable. Analog gauges are notoriously inaccurate. Place the probe mid-enclosure, away from the misting point.

Signs of Low Humidity

• Retained shed (especially on toes - can lead to constriction and loss of digits)
• Wrinkled or sunken skin
• Reduced activity and appetite

Keep it moist, keep it right. Your crested gecko will thank you with years of flappy-footed company.

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Sources & Further Reading