Both excellent suggestions. I can't put the water dish over the uth as that is where their hides are and I use that as their basking spot.

As for the humidifier, that would work great if the room wasn't so large.

I'd move them over to tubs but I feel like I'd lose some form of connection with them. I really like walking by and being able to look in their tanks and see what they're doing ya know what I mean?