Yeah, you got shafted. The girl was just doing her job, and unfortunately, it's you who paid for it. Let's be honest though. I know NOTHING about plumbing or electricity. I won't touch it. Would you trust me to set up your plumbing or electrical job in your house? Prob not.

A UTH is a great start, but PLEASE don't forget the thermostat. The last thing you want is a cooked snake. Also, you'll need the temp gun to get your surface temps dialed in correctly. This takes some time and some tweaking. This is why it's best to have the enclosure dialed in before the animal comes home.

And yes, PredatorKeeper and I are BOTH sure about the size of the prey. The width rule is a ballpark guide but it applies to the THICKEST part of the snake. You'll be amazed at how easily they can eat prey that seems big to a newbie. Another rule is that the prey should be approx. 10% of the snakes body weight at this stage. Your snake is probably over 160 grams, which probably means small adult mice (12-17 grams). BPs generally start on hoppers (8-11 grams) for their first few meals. Pinkies weigh about 2 grams.

Definitely a learning experience.