Hi Jason.
Thanks for your answer.
The frog is not there yet so I have plenty of time to adjust the parameters and get them right: temperature is the one that I do not get right yet.
I wrote planted just to mention that there are living plants in there: in practice there are only two of them (one pothos and one philodendron) so they should not bother when cleaning the terrarium. Keeping them in pots buried in the substrate would be possible though.
In your configuration, is the heat mat under the glass sufficient to get the proper temperature?
I thought the draining layer was mandatory in such terrarium due to the humidity / misting. Am I wrong?
Edit : My room temperature is 72 - 73°F during the day.