Why UVB light is also important for geckos

Geckos in terrariums have special needs - including when it comes to lighting. UVB light also plays a role in the optimal care of these popular reptiles, especially with regard to the synthesis of vitamin D3. Why is UVB irradiation useful for geckos?

The ABCs of UVB light:

Geckos are nocturnal creatures by nature, but that doesn't mean they should ignore daylight. UVB light is essential for vitamin D3 synthesis, a process that in turn is vital for healthy calcium metabolism and the prevention of bone disease. But that's not the only reason for UVB light in geckos. It also reduces the proliferation of bacteria, fungi and viruses on the skin and therefore has a positive health effect. Immune modulation - triggered by UVB light - also strengthens the body's own defense and immune system.

The diversity of geckos:

Different gecko species have different needs when it comes to UVB irradiation. Leopard geckos, for example, come from dry steppe regions and prefer lower UVB intensities compared to day geckos (Phelsuma), which live in sun-drenched environments. It is important to consider the needs of your specific gecko species.
Leopard geckos and crested geckos: Lovers of subdued light:
Leopard geckos and crested geckos are particularly popular among gecko keepers. However, these nocturnal or crepuscular reptiles prefer lower light intensities. UVB compact lamps (distance 30 cm) or a 35 watt mini metal halide lamp (distance at least 40 cm) are recommended here to imitate natural living conditions.

Day geckos (Phelsuma): Reptiles with a higher UVB requirement:

In contrast, day geckos are real sun lovers. These active geckos require a higher UVB intensity to optimally support their natural behavior and metabolism. UVB lamps with a higher intensity are therefore a recommended choice for day geckos - for example the 35 watt spot UV metal halide lamp (distance 30-40 cm) as a basking spot.

Vitamin D3 synthesis and health:

The importance of vitamin D3 for geckos cannot be overemphasized. Stimulated by UVB light, vitamin D3 helps with the absorption of calcium, which in turn is crucial for bone health. A lack of vitamin D3 can lead to serious bone disease (rickets), which can affect your gecko's well-being and quality of life. Other benefits of UVB irradiation for reptiles include a positive influence on white blood cells and the production of betaendorphins. This also supports the animals' well-being.

Conclusion: A sufficiently bright and healthy gecko life:

In the world of geckos, UVB light plays a key role in their health and well-being. Regardless of the gecko species, it is crucial to understand their specific needs and equip the terrarium accordingly. A well-placed UVB lamp, adapted to your gecko's needs, can pave the way to a long and healthy life.