First off, congrats and welcome to the dark side!
Here we go:
Temps - they're okay at room temp
but do better in warmer temps if possible (about 78-80 ish) especially if its young (legspan under 3-4") because it will help them grow.
Humidity - fairly humid, think in the 60%-75% range. Because of that humidity need, its important to be dilligent about removing bits of uneaten prey and provide adequate ventilation to prevent mold and bacteria growth which could kill the spider. With a good substrate (I like the Exo Terra Plantation Soil) you should be able to maintain humidity by providing a shallow water dish and misting the substrate every few days.
Caging - anything with floor dimensions on 3n x 2nd and a height from substrate to lid of no more than 1.5n (n being your tarantula's legspan)
Feeding - give 1 or 2 appropriately sized insects per week (appropriate size being no bigger than the tarantula's abdomen).
Misc - I don't suggest handling them because they aren't the most docile of tarantulas and their urticating bristles are the worst in the hobby. I also recommend washing your hands immediately after doing any cage maintenance so that if you got any hairs on your hands, they'll be washed off before you can touch your face/eyes and get hairs in there.
Other than that, just enjoy the impressive spider you're going to have in your care, truly a gem of the hobby![]()