im more concered about humity during shed, so for most of the time a goood mist in the morning and evening is fine, you really dont want to keep the tanks humity high all the time, could cause some health issues. you def want to switch over to aspen or even cyress much could help out. for my 20gal, durning shed, once i see the eyes get cloudy i take a damp towel, fold it to the proper length, and place it over the screen opposite of the lamp...works well keeps humity around 75-80 for most of the day and night, repeat the process when the towel has dryed out.