If you're around 45%, I think that is "okay"... ideally, a little higher would be preferred. I had a lot of trouble in my first enclosure with humidity. I ended up getting a decent size bowl and putting a big handful of sphagnum moss in it and then wetting the moss and putting about an inch of water in the bowl. I'd check it every other day or so and re-wet it if needed. That seemed to really help me and kept me from having to mist daily.