Congrats!!I love axanthics.
Have you read through this caresheet? https://ball-pythons.net/forums/show...s%29-Caresheet
I think the most common tip people newish to owning snakes don't know is to get a thermostat for their heat sources lol. And a digital thermometer/hygrometer and a temp gun, not the dial petsmart kinds.
Baby ball pythons need a lot of security and cover and hides to feel secure enough to eat (more or less depending on the individual). If you can't find them 95% of the time, that means you probably have enough cover. If you see them lying around or "exploring" out in the open too much, it means your husbandry is off, they're stressed out and probably won't eat.
If you're putting a baby ball in a 20gallon long tank, I would get 4 small hides from reptilebasics, not just two. Along with lots of fake leaves, and maybe some branches, to provide cover.
The reason why people recommend smaller tubs for baby ball pythons is because it's easier to get them feeling secure and eating.