Just thought of something. Garter snakes are often found sunning themselves which means that they are absorbing a lot of UVB rays from the sun. I personally have never used a UVB light with my snakes, but maybe I should? Do they receive vitamin D3 from worms and fish? I know that mouse eaters would get it from their prey but how much would they get from worms? Should I use calcium with D3 for them?

Sorry, I just got to thinking about it.