The second turtle light bulb that is needed is a uva uvb bulb.
Uv light bulb for turtle tank.
So to help you with that i made this guide that will go over everything that you need to know and do to properly.
Turtles need uvb light to maintain an optimal level of vitamin d3 production.
This is a great bulb to get if you have a very specific configuration in mind or if you have a bigger tank that you need to cover with lights.
The turtle wants light in the tank when it s daytime and no light when it s nighttime.
Whatever turtle light bulb you choose please make sure that it also emits uvb light.
Do you need two small lights.
Getting enough uvb light is critical for a turtle s health.
Big light small light a 3 pack of 50 watt lights and everything in between they have covered.
This is the most important bulb to have for your turtle.
The reason why uv b producing light bulbs are so convenient however is that they produce heat and uv b light so you won t need to take your turtle outside for hours upon hours every single day.
Now that we know that a turtle needs a light source replicating the sunshine let s discuss why turtles need uv light.
Typically you will want it to be photoperiodism which is a fancy word for how long you will want your lights to be on.
An infrared basking spot bulb should also be used at night to keep the air in the turtle tank at the right temperature.
Do you need a small light.
In the beginning you can be overwhelmed by all the different types of bulbs available and all the different types of light.
Why turtles need uv b light.