I have a few that are picky in the way their meal is presented to them. Some will only eat it if I leave it in their tub, some will only eat if the rat is grabbed at the scruff of the neck with the tongs (I guess this makes their rat look more alive?) and some absolutely insist that their meal be moving when they strike it. For awhile my baby yellowbelly would only take his rat if it was drug backwards by the tail . Try different things but you could also try different types of prey or different sizes. I have a few that will only eat mice but most of mine won't touch a mouse and prefer rats. They can be a real pain trying to figure out what they want but once you know, it gets easier. Also, you didn't say how you're heating the mice for feeding but I use a hairdryer to heat them up after they're thawed. Some people use hot water. The heat signature helps to get a feeding response. Heating them up near their tubs also helps get the scent going so they know it's feeding time. My caramel glow girl comes out of her hide in full blown feeding mode when she smells the rodents heating up. Just a few suggestions, hope it helps .