Quote Originally Posted by hondo1967 View Post
Keep the rodents girth the same size as your BPs girth and u should be ok
That's a good rule of thumb, but my guess is that it isn't going to help out in the case of ordering online.

I checked the mouse factory website, and it says that 55g is the average weight for their small rats. So as long as you start out feeding the smallest ones first, you'll probably be giving something more like 50g.

Since your BP is currently taking 44g in one meal, it sounds like she could probably handle 50g.

Another rule of thumb I have heard is to feed 10-15% of the weight of the BP. 15% of 300g is 45g. So that also indicates to me that your BP could probably handle 50g.

It does sound like if you order that size that it will be a little more than what your BP is used to eating, and a little more than the recommended range, so I would be cautious. When the rats arrive, if the smallest ones look bigger than her girth, maybe get the mice locally for a few more feedings to get her just a bit bigger. Also if you think the meal is slightly on the big size, you might give her 72 hours to digest before you handle her.

Also, I have never ordered from the mouse factory, but from what I've read, Edna is great and gives each customer personal attention. Maybe they'd be willing to give you a slightly mixed batch with a few rats on the smaller side? Couldn't hurt to ask...