Our first BP, Rosy who we have had for a bit over 2 years is thriving. Thanks to this forum and its great members.
She loves being held, and is so laid back and enjoyable, that we wanted to get another one.

We got Boots Dec 28th, and like Rosy, from PetSmart.
The paper that came with her stated that they received her Dec 23rd, and that they hadn't attempted a feeding over the 5 days.
We brought her home, set the tank up just like we did Rosy's. Her weight was 108 grams.
We limited any handling as she seemed a little on edge from all of the moving she had gone thru.

The following Sunday, Jan 10th, we tried to feed her a f/t pinky. She had no interest. Her weight was down to 106 grams.
We left her alone to settle in some more for another week.

That Sunday the 17th, another feeding attempt, and the same result, no interest. Her weight held at 106.
We held her throughout the week thinking maybe she needed to become acclimated to us. We handled her every other day. She was very content to be held, and active in the tank at night.

Another week goes by, so today we attempt another feeding. Same result, no interest. Her weight is now down to 103 grams.

Tank numbers are: Heat lamp side: 80-82 degrees. The UTH side, under the other hide is 86 degrees. Humidity is really hard to hold, but it fluctuates between 30% and 45%. We wet a towel on top of the tank, and have moist paper towels in the tank.

When she is held, she is active, and curious. She climbs up inside our shirt sleeves, around our arms and hands. Her color looks good, no signs of an upcoming shed, no RI symptoms or anything. Except for the 'not eating', she seems like a happy healthy snake.

I have read that some snakes go thru a 'fasting' period this time of year. Which leads to one of my questions.
How much weight loss is ok, and at what rate? She has lost 5 grams over 4 weeks.

At what point should we start to really be concerned? And if that point comes, what do we do?