In this episode we take a critical look at one of the most persistent myths in the hobby: that air bubbles from your filter automatically mean your fish are well-oxygenated. Spoiler alert: they don’t. We uncover the science behind gas exchange, explain why surface agitation matters more than you think, and offer proven solutions to improve oxygen levels where your fish need it most. You’ll learn how temperature, filter placement, and even seasonal changes can drastically impact oxygenation. If you've ever wondered how oxygen even gets into your water, this episode if for you!