Living in Tropical Country

[tttaylorrr]

Since I got her home, I've search plenty on how to properly care for a ball python and stumbled upon this site. I've made adjustment for her tank, using substrate, covering three sides with black papers, getting half log as her hide and put thermometer/hygrometer inside. From a week of observing, the temp is around 77-86 F with humidity ranging from 70-85%.

welcome!
what type of thermometer/hygrometer are you using? if they're the analog/dial ones sold in pet stores, i would highly recommend not using them and find a digital thermometer/hygrometer. those analog ones are never accurate.

Now my first question is, do I still need to put heating source with the climate I live in? I can't find UTH in here, I've tried looking both in pet store and hardware store with no success. If it is still necessary to put heating source, what is the alternative safe way of UTH? Heat bulb?

a UTH is used for belly heat which aids in digestion. digestion for snakes is a very delicate thing and if their needs aren't met they can have a lot of issues, even life-threatening. the UTH is controlled by a thermostat and set around 90°. i would recommend getting a UTH online since your temperatures don't reach that high, and you can find a light dimmer at any hardware store to control the UTH. ALL sources of heat MUST be regulated somehow.
in regards to bulbs: now i don't use them, but i think they're used to raise ambient temperatures only. the bulb would have to heat up the enclosure floor underneath the hide, which means a lot of heat and is not practical and could be dangerous.

So far I've only put one hide inside her tank because there's no hot/cold spot. It's half log, when I tried to change it to smaller opening hide, she just roamed around it so I put the half log back and she slithered right in.

if you decide to get a UTH, another identical hide is almost a necessity; that way they don't have to choose their security over regulating their temperature.

Next is how to lower humidity inside her tank? The highest humidity I found was 90%. To reduce, I usually open the top lid and change her substrate in two weeks or whenever I found it to be damp and/or smelly. Do I need to change the lid? If you have better way to control humidity, I'd really appreciate it.

maybe turn a fan on in the room? smaller water dish? i'd maybe go for a mesh-top enclosure. how big is the enclosure your snake is in now?

Since snake is nocturnal, does it mean that it's better to feed her at night? handle her at night? or is it just fine whenever? So far she doesn't seem to mind if we handle her in daylight, no hissing, no S shape readying to strike whatsoever.

i handle them p much whenever i want, but i always feed at night.

she's a beautiful noodle, and you seem to be providing good care for her. these are only my recommendations and opinions, but i think they'll help. hope you get many, many years of enjoyment from her.