FlytrapCare Carnivorous Plant Forums

Good night people! Finally I set up my first terrarium containing 2 nepenthes, one Robcantleyi x Hamata and another (Rafflesiana x mirabilis) x [(lowii x veitchii) x boschiana] together with other plants suitable for indoor cultivation, I placed them in separate pots with sphagnum and I raised the level of the whole terrarium with substrate for ordinary plants so as not to have problems with soil mixing, and then I covered it with fluffy moss.
I'm using the following items:

- 1 Terrarium 30x30x30cm
- 1 Timer (this one for the ventilation system with mini cooler, configured to turn on every 1 +/- for 15min during the day and 15 min every 2/3 hours at night to further increase the humidity at night.
- 1 LED growth plate
- 1 Hygrometer

My question is the following:
Will a small cooler this time be enough for this "small" size of terrarium to prevent mold? or.. does this little terrarium really need ventilation? when turned on the humidity drops to 60% +/- and turned off it is on average 85/90%.. it is a light breeze inside the terrarium but directed towards the nepenthes.
The growth led stays on for a period of 10h, adjusts to 14h when spring arrives.