1 Feeding an alternative prey that is not readily available could be an issue so I would not try to offer Hamster again. Your temps should be stable, day and night.

Can you give us details.

How long have you had that BP for?

Has it ever ate for you?

How often do you handle him?

What is the enclosure size?

Ho do you measure your temps (where and what type of thermometer do you use?)

Do you provide hides? Are they tights?

How do you offer food?

Medium rats are way too big for a BP that size a rat pups on the larger side or weaned rats on the smaller side are what you are looking for.