We have a super pastel 66ph clown female who WOULD NOT eat rats UNLESS you also provided a mouse pink.Yup. Mouse pink. so small as to be a single potato chip of a snack. She'd even kill the rat and just wait to eat it for her mouse pink: weirdest. f'in. snake. after 6 months, she started to just eat the rats.
Good luck converting!! (you can do this!)