Greetings everyone. A couple of months ago I purchased a 4-tiered mini greenhouse off of Ebay to keep my CPs healthy over the winter months in my basement. They are simple to build and use. Essentially, it is a shelf with a plastic covering with a zippered door to access the inside. I've placed a small growlight on the inside middle shelf, another grow light at the top and the whole thing sits under a large flouresent light. On the bottom shelf and middle shelf, I have large shallow trays that are filled with water to help maintain the humidity.
I've noticed many times, when I open it up, it seemed like the air was stale. I'm wondering if it would be a good idea to place in a small fan or two to keep the air circulating? Any suggestions?