Hello, I have two light fixtures in the T8 cages because my girlfriend wants her ball pythons in the living room and in view. We use day light fluorescent bulb and she likes the black light bulb for night time. However, the black light is behind a plastic cover and looks "blue."

I'm not 100% sure if black light is safe to use? Or should we get a true blue fluorescent light? Or perhaps a red one?

Thoughts?