Ok. So...
I still didn't buy the nice hygrometer.
I broke out my extremely cheap one that I don't think is very accurate. But I figured would give me ball park estimates.
With the lights off.. around 60%.
Lights on. 25%.
Way too low.
I purchased very small cool mist humidifier.
Working wonders. It's hidden in the bookshelf below my lantern.
With the humidifier I'm at 70% during the day, and 85% or more at night.
Still have to rig it up nicely. I want wider tubing.
It has an adjustable dial, and you use a water bottle as the reservoir.
It says lasts six hours before refill. But I'm on day two and its only halfway down.