The tanks do require a lot of vigilance, and screen tops have to be covered to maintain any acceptable humidity levels. We've handled it by using generously-sized water dishes, regular misting, and we've tried the Repti Flo 250, but we've had trouble getting it to stay in the water dish (Neph loves to knock his around). If our collection grows any more, we'll be switching to the Rubbermaid/Sterlite option. We bought our glass tanks before we knew any better.