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Tag Archives: uvb light for reptiles

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UVB Light: Why Do Reptiles Need It, and Which UVB Bulbs are Best?

Our understanding of the role that Ultraviolet B Light plays in the lives of reptiles and amphibians has increased greatly over the last few decades, but we still have much to learn about the needs of individual species. A good deal of conflicting information has been published, and opinions differ even among my well-experienced herpetologist colleagues. Today I’ll provide some basic information on UVB light in natural and captive situations, including some tips as to how best to provide it to the animals under your care. I’d like to stress that many variables will affect your individual situation…please post below for specific information.

What is Ultraviolet B (UVB) Light?

The various types of light are characterized by different wavelengths, which are expressed in nanometers (nm). There are three types of Ultraviolet Light, two of which are important to reptile and amphibian husbandry.

 

Gopher Tortoise

Uploaded to Wikipedia Commons by Gary2863 at en.wikipedia

UVB Light has a wavelength of 280- 320 nm. Many reptiles synthesize Vitamin D3 (or, more specifically, Pre-Vitamin D/Cholecalciferol) in their skin when exposed to UVB light. The optimum range for Vitamin D3 synthesis in reptiles is 290-315 nm.

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