PETCO does under feed their snakes. Pinkies are too small for even hatchling BPs. Snakes can easily eat up to 1.5X their width. When I get a BP that is under 100g I feed hopper mice every 3 days until they reach 100g then they get a rat pup once every 5-7days. At 130g she can handle a rat pup or adult mouse. It may seem huge but they can take it.![]()