Hi there and welcome to the site

There are a lot of people on here that despise the information given by Petco employees because usually it's pretty inaccurate... That's what we're here for...we want to help you to make sure your boys are properly taken care of and live a long full life.

First of all..they probably said "yeah it's ok for them to be housed together"...not really. Please, 1 snake, 1 cage.

Next, is your heat pad inside the cage? should be on the outside bottom if so...

How are you keeping an eye on your temps/humidity? The analog gauges are Crap...yes with a capital "C"...Crap...

hit up Wal-mart and get a good Accurite thermometer...they run about 11 bucks and can monitor warm side temps, cool side temps, and humidity..all in that one unit

edit: whoops sorry i thought you said you bought 2 snakes...re-read your post and saw you only have one snake for your 2 boys ...for future references then, 1 snake, 1 cage