In this short, I’m calling out one of the biggest pet store “care tips” that keeps reptiles alive… but not thriving: enclosures that are way too small. You’ll hear, “A 40-gallon is fine, that’s all they need,” but biologically that ignores what enclosure size actually controls. Space determines a snake’s ability to thermoregulate, build real humidity gradients, move enough to develop muscle, and express natural behaviors. When you take away spatial variation, you take away their options—and that’s when you start seeing chronic stress, reduced activity, poor digestion, and long-term physiological compromise. I also hit the other common pet store fail: humidity advice that boils down to “just spray it sometimes.” Humidity isn’t just a number you’re trying to hit—it’s something you build into the setup. Ball pythons and boas use burrows, leaf litter, and soil layers to create stable, moisture-retaining microclimates. If your whole strategy is spraying, you’re making spikes, not stability, and that instability can lead to dehydration, poor sheds, respiratory irritation, and more chronic stress. That’s why substrate and enclosure design matter so much: humidity is about retention and release, not chasing crazy spikes.