1.I would most def buy a device to measure humidity...you cant just guess on those things.

2. I feed my girl at 12 in the after noon, some people feed them at night becuase thats the only time they will eat, you will have to get your bp to figure that one out i guess

3.the waterbowl temp in my tank is room temp i keep it right by my light.

4.buy whatever sex snake you want, boys do stay a little smaller if thats what you mean.

5.I have my water bowl on the warm side with a hide and on the cool side i also have a hide

6.I use eco earth in my bp's cage and newspaper in my (soon to be ) corns cage i have never tried aspen shavings.

7.maybe the ones from petco are wild caught and maybe thats why they are aggressive or they are very pissed off and simply want to be left alone

8.make sure you feel comfortable feeding mice to your snake, i was blind sighted when i bought my snake and i didnt think about how i would be killing a mouse a week (you dont have to worry about any of that killin stuff if you feed frozen though)and always ask the seller if the snakes are wild caught or captive hatched.....OR wild caught captive born, sometimes those refuse to eat (the wild caught and wild caught/captive born)