Q- Yeah, I wonder. Oh wait, actually I do wonder! Was that you, Q, or Zach that brought it up first.
I can't remember these things.
Good idea. Now, if I just had that $2,000 camera sitting there firing off magazine quality photos, we'd be set.
Hediki-
I personally seal my boxes to keep the vermiculite from changing water content. There is more than enough air in that box for eggs to respire well past hatching if I never burped them. However, they do get burped to alter humidity (wipe water off the lid if it's too moist, add water if it's too dry).