my Atta colony is doing well so far. I am not sure where to measure the humidity. I am using modiefied IKEA boxes (56x39x28 cm/45 l).
I installed plenty of plaster and seramis ath the bottom. In addition to that I put an bottle end above the fungus to garantee high humidity.
At the bottom of the box I have 99% humidity whyle I have 88-90 % at the top.
So where do you measure humidity and temperature?