I bumped into a site about this once upon a time (cant seem to find it now). Is this a common problem with small "fish tank" vivariums? I would assume that the exo/zoomed style would not have this type of problem because of the front vents and the constant opening of the front door to feed/water. Considering that the co2 displaces the oxygen on the bottom of the tank (co2 weighs more) is this a common problem ? Just thought i would seek out some experienced hobbyists knowledge on the subject.
-Kevin
lol duhhh i just get to thinking and i start typing a thread.. excuse my noobie ignorance =)
ill check them out haha
Short answer is no, it's not often a problem at all.
Rich
Exoterras with venting - Vivariums with venting are all good to go. No worries.
The problems I have seen first hand and heard about are almost all "Temporary Tank" enclosures that are much more sealed. Some tanks (aquariums) with Saran Wrap over the entire top. "Rigged" or incorrectly mod'ed up tops and lids - usually on fish tanks, not allowing any ventilation. Combined with high temps = your main problem.