Humidity Issues - need ideas

So I'm all set up with my 30g. Insulation on 3 sides, foil on the screen. It's holding temps very well. Staying (allegedly) between 76-80 on the cool side most days without much effort. However, it is also holding humidity real well. Perhaps too well. I'm under 80 now, but I still have humidity that ranges from 70-77%. Is that too high on a daily basis? If so, any suggestions on how to bring it down a bit?

I used to have issues keeping humidity and had to mist. Now I have the opposite.

the bottom tub on my rack and my whole rack in general had a similar issue when I switched to cypress mulch . I found that more airflow (ventilation holes and a small fan in the room ) brought down the humidity to acceptable levels . During shed I just mist some water and I'm right where I need to be


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Peel back a small bit of the foil on opposite corners for ventilation.What are you using for substrate?

Right now I'm using Forest Floor cypress. Been prettt happy with it.