I don't know what to tell you because I am having the same problem with my Dumerils. He is the only one that flat out refuses to eat f/t. If you find a trick, let me know. I feel like we have tried everything, from leaving it in his enclosure overnight, to putting him in a pillow case with the rat overnight, to forcing him, to trying to stubborn him out (3 months without eating before we gave in and bought him live rat pups). Mine is only a little over 2 feet long and I would really like to get him transitioned before he gets big and the rats fight back.