He used to eat in the small tub I got him in I always take them out the tank when I'm going to feed him but he got bigger since I first had him so I started using a cardboard box only used it twice or 3 times but I went and brought a bigger tub for him but it seem like he was more focus on getting out the tub then ratting even when I had the rat in his face and shaking it around so I took him out out him in his out tub same thing then I finally just put him in the cardboard box and he strike at the rat and ate it. Now the way I been thawing the rat out is the night before eating I take the rat out the freezer and sit it on top of his tank inside the ziplock bag still and leave it till mid next/night then I dip the body in hot water but I'm not sure if I'm getting the rat hot enough or what cause I have to dip it a few times before he takes it idk if he only taking it cause I keep pressuring him by keep trying or that when he do take it right before I was about to give up that I finally got the rat hot enough for him to want it