I use a converted closet rather than a tent, and monitor/adjust humidity a couple different ways. During vegetation, I keep a towel draped over a drying rack set in a bucket of water, so the towel soaks up the water. I place this between the plants and a fan, which blows over and evaporates the water that gets wicked up from the bucket. Depending on the ambient humdity, I’ll use a bigger or smaller towel. Like so:
I just chopped and hung my plants to dry. I aim for 60 degrees Farenheit and 60% humidity during this stage, and evaporative humidity won’t cut it. So I added a small humidifier. So far, so good. 