I have been feeding Rat Crawlers for the past couple weeks to my BP's, but this past weekend the place I get mine from only had rat weenlings. They looked kinda too big for my girls but they needed to eat so I got them anyways.... Man let me tell you what, my BP's had ZERO problem taking them down and they are just fine. My girls range from 200 to 230 grams. I will now be staying with weenlings now till they are big enough to upgrade to small rats