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Red Bulbs and Reptiles - Why they are detrimental and can harm your pets photoperiod

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Red Bulbs and Reptiles - Why they are detrimental and can harm your pets photoperiod

Plain and simple, reptiles' health revolves around having proper lighting, heating and enriching their captive environment as much as possible. Being ectothermic they use color for a large amount of physiological, behavioral and environmental operations; such as finding food, mates and adequate basking areas for basic homeostasis. Although It is common to hear that they cannot see color, there is ample evidence that reptiles' visual color receptors CAN see a variety of colors, including red.

In this blog we will discuss why red bulbs are not the best and why there are better options for your pets. 

https://www.thebiodude.com/blogs/helpful-husbandry-faqs/photoperiod-is-important-to-your-pet-reptile-here-s-why  


Red bulbs were designed with the thought they would produce night time heat without producing a bright light. In actuality, this disrupts the reptile's photoperiod, affecting their sleep, eating, behavior and overall health due to the stress it can cause. Think of this this way, if you were trapped in a room each night at bedtime, and the whole room was illuminated a bright red, how well would you sleep? The answer is simple, NO!  In a captive environment it is our responsibility to replicate nature as accurately as possible. This gives them the ability to thrive, not just survive. In the wild, their environment will not be illuminated completely red or yellow during the night time. Usually, a darker bulb that emits no light or very minimal light is recommended; especially for crepuscular reptiles. When using LEDs and other plant lights, as long as the color of the light does not have the color "shade" the keeper should not have any issues with it, pending they are maintaining a proper schedule. 

A photoperiod is the amount of time between sunrise and sunset, basically a day and night schedule. Having extremely sensitive eyes, diurnal reptiles use the sun rising  as a sign to bask and obtain UVB, where nocturnal reptiles use the sun setting as a sign it's time to be active for hunting, foraging and hydrating.  

https://www.youtube.com/watch?v=1q3P8T49NTA&t=375s 

There are many options when finding better lighting for heat than red bulbs. (Bulb wattage depends on researching the specific animals husbandry requirements and enclosure sizing) 

  • Day time - Diurnal reptiles like Bearded dragons need a day time light other than UVB and will utilize a basking area. As the goal is heat and light, Flood lamps are directional, making them perfect for basking. White incandescent bulbs are great, taking into consideration that halogen bulbs are the more enhanced version of incandescent, allowing them to be longer lasting and produce more efficient heat saving energy in the process. 

*It's important to note that a UVB bulb is different than a heating bulb

For the reptiles that need a lower temperature for basking such as Crested geckos or Jacksons chameleons, you can use a nano heating element

https://www.youtube.com/watch?v=fBQduMAZKPY 

  • Ambient - for the reptiles that may be crepuscular or just for extra heating purposes, a ceramic heat emitter and the usage of a lower wattage nano element to help produce enough heat. 
  • Night time -  The best option seems to be a ceramic heat emitter, as they are readily available in most retail outlets and online. Depending on enclosure size there are nano ceramic emitters as well. Some keepers use radiant heat panels, heating pads or heat tape. *Heat rocks cannot be properly used, even with a thermostat and will cause burns to your reptile, do not use them* 

Regardless of what heating element you choose, safety measures need to be taken for the bulb or CHE so it also has a healthy life span. Using a timer, a thermostat, proper bulb fixtures and monitoring daily will keep issues from happening, such as overheating and burning the animal, the animal getting to the bulb and burning themselves, melting the fixture the bulb is plugged into, or the enclosure the fixture is on and fires being the most common.

The Dude Abides. 



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