A Photo and weight would help but, by "fuzzy" I am going to guess you are still talking about mice?
As in a mouse fuzzy.
That is a bit small for most BP's in my opinion and, you will find if you can switch to rats the cost for feeding should be lower over all along with having a more content healthy animal.

Juvies and hatchlings usually take the standard 10-15% of their own body weight (personally I've found that my own BP's seem to do well on this right up until they hit "the wall" and start refusing meals which for me seems to happen between 600 grams and 900 grams) weekly.

- - - Updated - - -

A Photo and weight would help but, by "fuzzy" I am going to guess you are still talking about mice?
As in a mouse fuzzy.
That is a bit small for most BP's in my opinion and, you will find if you can switch to rats the cost for feeding should be lower over all along with having a more content healthy animal.

Juvies and hatchlings usually take the standard 10-15% of their own body weight (personally I've found that my own BP's seem to do well on this right up until they hit "the wall" and start refusing meals which for me seems to happen between 600 grams and 900 grams) weekly.