My radix is losing her vibrant color

[nitrogen15]

Does she get any ultraviolet exposure, artificial or otherwise? I ask because natural sunlight or UV emitting bulbs tends to darken some snakes. But then, some just do that anyway.

She was under a full-spectrum bulb for a while (unsure of UV levels) but lately she's only been getting indirect natural light. The UV idea makes a lot of sense. Even the plankton I study will color up for protection when UV exposure increases.

[ConcinusMan]

Do we not tan when we spend time in the sun? Yeah... 'nuff said.

Well, actually not enough said. These salamander or newt larvae I'm keeping.. they lighten up indoors. They get plenty of natural ambient daylight, but no direct sunlight. Well, the ones outside are very dark colored. The ones inside are very pale. Hmm....

[nitrogen15]

Yeah, my garter gets plenty of indirect daylight too. I know there are some other factors affecting color like diet, age and disease, so I wonder if I'm missing something.

I came across an interesting thread about sudden color fade in Brazilians.
Sudden Color Fade - sSNAKESs : Reptile Forum