If he still refuses, you might try dipping them in VERY hot water just before you offer them. Especially the head. I used the blow dryer trick for years, and it does work fairly well. Then I heard about pinks dipped in boiling water being a very reliable trick for getting stubborn corn hatchlings to start eating. So I tried the same theory with some of my BPs, many of who are reluctant at best when it comes to eating f/t. I was surprised at how much success I had!