Help please

[busypencil]

I am having a problem with frost build up on roof due to execessive humitidy in the house. I have two saltwater tanks one is 108 gallon no sump and another is 100 gallon with I think 60 gallon sump. I like the looks of the non sump tank but if I have to get rid of one tank to eliminate my humitidy problem which one should I keep? Do problems arrise from non sumped tanks. I have water in this one and some rock but no skimmer just heater and filter. no fish in this one yet. Please give advice.

Linda