The Hidden Dangers of Poor Air Exchange in Vivariums (And How to Fix It Properly)

Dart frog in a humid bioactive vivarium showing condensation on glass and mould on leaf litter caused by poor air exchange.

If there’s one thing that gets overlooked in vivarium keeping (even by people who get the humidity, heat and lighting spot-on), it’s air exchange. Not “air movement” from a fan blasting the tank dry, but fresh air in and stale air out—consistently, gently, and in a way that supports a stable bioactive ecosystem. I’m writing […]