My husband and I bought a BP 15 days ago from Petco. Petco people said they were feeding her pinkies every Thursday. We thought that was way too small for her so we tried feeding her F/T fuzzy Saturday with no luck. Petco said she was around 5 months old, but we think she's a lot younger. Ana is 64.4g and approximately 18 inches long. Is she under weight? What should she be eating?