Do Crested Geckos Need Light?: Your Ultimate Guide to Crested Gecko Lighting Needs

Crested geckos are fascinating, nocturnal reptiles native to New Caledonia—and as a pet owner, understanding their lighting requirements is essential for their health and well-being. Many first-time gecko keepers wonder: “Do crested geckos need light?” The answer depends on whether you’re asking about natural daylight, UVB, or nighttime illumination.

During the day, crested geckos do benefit from a natural light cycle that mimics their wild environment. Exposure to gentle, indirect daylight helps regulate their circadian rhythms. However, crested geckos are nocturnal, meaning they are most active at dusk and nighttime, so they don’t need intense lighting or basking lamps like some other reptiles. That said, providing a low-level, 12-hour day/night cycle (using LED or fluorescent lights) can help regulate their sleep and metabolism.

UVB lighting is sometimes recommended to support vitamin D3 synthesis and calcium metabolism, but it’s not strictly required if your gecko’s diet is well supplemented. Too much light or direct sunlight can stress your crested gecko—avoid placing tanks in bright windows or under strong bulbs. At night, darkness is crucial for their natural behaviors, so avoid keeping lights on after dusk.

As a designer, I always consider natural light and artificial lighting not only for the comfort and health of the inhabitants (human or gecko!), but also for how they frame and enhance a space. For reptile enclosures, achieving the right light balance is similar to thoughtful interior design: both require understanding the needs of those living in the space and choosing solutions that are functional as well as visually appealing. By setting up your gecko’s habitat with indirect, timer-controlled lighting, you create a healthy, beautiful environment for your pet and your room.

Tips 1:

Use a programmable timer for your gecko tank lights to maintain a consistent day/night cycle, ensuring your pet’s natural rhythms aren’t disrupted. Position the enclosure away from direct sunlight to prevent overheating and stress.

FAQ

Q: Do crested geckos need UVB lighting?

A: While crested geckos can benefit from low-level UVB, it's not strictly necessary if their diet is properly supplemented with calcium and vitamin D3.

Q: Should I leave a light on for my crested gecko at night?

A: No, crested geckos need darkness at night to remain healthy and follow their natural nocturnal habits. Avoid night lights.

Q: What type of light is best for a crested gecko enclosure?

A: Use LED or fluorescent bulbs that provide a gentle, indirect daylight effect during the day, with a consistent 12-hour cycle.

Q: Can crested geckos get stressed from too much light?

A: Yes, excessive light or direct sunlight can stress crested geckos and cause health problems. Keep their environment shaded and cool.

Q: How can I ensure my gecko is getting the right amount of light?

A: Set up an automatic timer for lights and check that the habitat mimics natural day and night cycles. Monitor for signs of stress or discomfort in your gecko.