It really is not that hard... If you have some patience. I got Jamie's stubborn Granite hatchling girl who has refused f/t for over a year by moving the f/t in a different way... Instead of dangling it above her head, moving it back and forth on ground in front of her like live prey. Of course I'm not saying it takes that long!! You just have to try different methods, there's a possibility you may have to feed live a few times. Be persistent and the switch should happen. If they keep refusing rats, you could try mice instead. There's a lot of different things to try. They're not going to immediately starve to death. Hunger is quite a motivator!!