I need some advice on keeping the humidity up. Previously, I've kept the vivarium pretty wet which caused a bacterial infection. Currently I'm using paper towels at bottom and a large glass vase filled with rocks, water and an air tube to create humidity. I've tried two different types of submersible heating rods (in the same vase with the air tube) but both of them clicked off too fast and didn't create any heat. Here's a photo of what I have... the humidity is falling to 30% shortly after manually misting so the vase/air pump idea isn't working out. I don't want wet-substrate solutions until I am an expert on creating and keeping a bacterial-free environment. Plastic wrap covers 50% of the mesh lid but even that doesn't hold in the moisture, though it helps. The lack of humidity in Las Vegas counteracts anything I've tried so far. I was thinking of ditching the water-vase-air-tube idea and going with a heat lamp resting above the mesh lid and one of those water misting systems I've seen. Will the mister system and heat lamp keep the humidity levels up enough on their own, or should I look into something else?