Once I have my bundle of joy, how long should I wait to handle, if any wait at all?
Wait for a week, so he/she can be familiar with his/her new home.

How often/long do you handle your young, adolescent and adult snakes?
I handle them until the 2-days after their first feeding with me. So a total of 9-days I wait.
The first few weeks I handle them 2-3 times a week for about 20 mins. Now, they don't mind being held. It just takes patience.


Do I need a water treatment for when I replace his water?
My water here is a bit hard, so I use the zoo med water treatment only one droplet every 4-oz of water. Does it work? I don't know lol