When do you start to panic about your BP not eating?

[Craiga 01453]

No signs of any illness at all and he recently had a fecal float done. I did notice something tonight while I was feeding him. I normally defrost his rats in bags that are put into water. I ran out of the bags I normally use and I started using crappy ones that leak a lot of water into the bag. I wonder if that has helped clean the rat and make it smell less. They normally smell pretty funky. He definitely looks interested but never actually strikes.

Believe it or not, that could be it. I have a BP that will only eat if I go straight from the freezer, to the warm water (no bag), to his enclosure. If his prey sits out for a little while, he won't eat it. If I leave it in the fridge or at room temp to defrost, he won't eat.