Corn snakes don’t require much UVB light to make use of calcium in their food. But it’s recommended to install a UVB light inside a corn snake enclosure to ensure their general well-being and health, and to replicate their natural habitat.

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Corn snakes require UVB to make the most out of the calcium they receive in their daily diet. But they need little UVB exposure than many reptiles from the desert and tropical regions since they’re naturally shade-lovers.

One of the most well-known benefits of UVB lighting for corn snakes and other reptiles generally is the fact that it’s necessary to ensure proper Vitamin D3 as well as calcium levels. UVB lighting regulates the production of Vitamin D3, and it is Vitamin D3 that allows reptiles to absorb and process calcium. However, as far reptiles go, it’s widely accepted they receive the calcium require from the meat they eat. Therefore, this is also used as the reason that captive snakes don’t always require UV lighting.

Every reptile requires a clean night/day cycle. That basically means that your reptile will need lighting during the daytime and dark at night. However, lighting requirements aren’t required to keep corn snakes. Most people agree with the fact that they are crepuscular (most typically active at sunrise and sunset). Sunsets and sunrises typically don’t emit many, if any, ultraviolet rays. UVB (ultraviolet B) illumination is not necessary. However, there are many who have observed positive effects and positive changes after their corn snakes were provided with UVB bulbs.

The other debate is the case of Albino Corn Snakes. Albinism causes the eyes and skin of animals to become more sensitive therefore it is possible that UVB can cause irritation to the albino corn snake more than it will benefit them.

My personal advice is to be on the safe side and make sure to keep UVB away from albino corn snakes at least, because we know that it’s not necessary, however, there are concerns about whether it harms more sensitive species.

In any case, you should give your corn snake illumination. It could be done by putting either fluorescent or LED lighting bulb over your enclosure’s top, or even giving your snake indirect lighting from windows. Giving your pet a method of distinguishing the time of day from the night is a great idea.

Utilizing bright lights in the night is another thing I would strongly advise against. Even if the bulb is labeled as a “nighttime” bulb reptiles could observe this and may not be awed by it.