I have successfully gotten mine to eat f/t mice on several occaisions. I pull them out of the freezer in the morning and place them in a (dedicated) bowl, and let them sit on the counter all day until it is feeding time that night. This allows the mice to get to room temp. and if not a little warmer. I then use tongs or tweezers and dangle them in front of his hide box, that is in his feeding cage, until he takes it. Sometiimes you may need to move it around like it is still alive before he will even look at it. I have yet to have him refuse to eat one though. Hope that this helps y'all out. Convertly them over to eatting f/t mice only will take time and a lot of patience. Let us know how it goes.