Not sure if this applies to your situation but, where I live the cold months create very dry air. I run humidifiers to bring up the overall humidity so that the issue is easier to deal with.
For glass enclosures with UV lights I use a mix of repti-bark and eco-earth and only have to mist every few days.

I cannot recommend highly enough the use of a X-PVC enclosure for helping with humidity issues (Tubs would work equally well I am sure but, because you chose a tank I am assuming you want some sort of display set-up).