Okay, the temperature for the hot side is a little too high, you don't wanna go over 90. Now ball pythons are cold blooded which means they cannot control their body heat by themselves, so they need a temperature gradient, a hot side and a cold side, so they can move to one side or the other depending on how hot or cold they are. Like move to the hot side if they are too cold and cold side if they are too hot. You'll need to look up more on your own to get a better understanding, I would recommend going to the husbandry section of this forum and reading all the sticky posts, not just for this but for a better understanding in general. But the basic idea is you move the heat source to one side, I would put your hydrometer/thermometer on that side then you will need a regular thermometer for the cold side so you can make sure the cold side doesn't get to hot or too cold. The hot side should be around 85 - 90 and the cold around 80. You will also need another hide for him to go into on the cold side so he will feel more comfortable. If you haven't already I would also suggest getting some clutter for your tank, some fake greenery and stuff like that just so he wont feel so exposed. The humidity seems mostly fine but I wouldn't let it go below 50. Like I said, I would look up some set ups for examples and look through the husbandry section of this forum. I can also send some pics of my setup if you would like.
I hope this helps
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