Need help about enclosure VENTILATION

[StampFan]

Hi Guys, Me and my girlfriend are fairly new to the hobby (And to this forum)
and we are unsure about the ventilation for our little 8 legged friends.

Here's the question: Are Exo Terrarium consider well ventilated?

We have 5 Tarantula's so far, GreenBottle Blue, OBT, Mexican fire leg, Brazillian Fire Red and a Antille Pink toe.

They are all contained in Exo Terrarium, beside the OBT which is homed in a 10 Gallon Top lid tank.

We wanna know if those are good to keep our pets in.

Thanks for your help

Some of this likely depends on how humid it is where you live, and how humid it is in your house. That strongly affects how fast evaporation happens in an enclosure and what the ventilation looks like, as well as each species is different. In that list I'm not sure ventilation matters much except for your Avic (unless they are slings of course).