My ball 450 gram male ball python has been eating live his whole life. he hasnt eaten in three weeks since he was in shed so I figured now would be a good time to switch him to f/t. So I tried a pre-kill one night, i dangled it infront of him and he kept coming close to it like he was going to take it but never did. So i left it in there overnight and he didnt eat it. I did the same thing two nights later and the same result. How can I switch him. I dont wanna just keep buying, killing, and throwing away rats.