For anyone using a glass enclosure, I would recommend them getting a "versa top" to cover their enclosure to help maintain humidity and ambient temperatures. Also , with the "versa top" it is aesthetically pleasing to the eye while serving a two fold issue. Actually three fold bc it will help prevent escapes being a glass product that is heavy and covers the whole top of the enclosure. You will have to make holes into the plastic attachment that gets placed (slides) onto the folding glass for ventilation. You need to get the versa top that corresponds to your tank based on the gallon size. You will really be able to kiss your humidity problems goodby! Versa tops are sold at Petland, Petco, and Petsmart. They can be a bit pricey but pay off by so much in the long run. Lol.When I used glass enclosures I had a versa top on every enclosure. Now I use a rack system so no problem with humidity. Good luck.