I've found the best way for me to feed in the tank is to wait until he's in his cave-like hide where there's a definite opening, and I wiggle the rat around in front of the opening. Walk it back and forth across the door, pop the head into the hide every sort often, that sorta thing. Gives my Olie a bit of protection for the hunt, I guess. He really likes being fed this way, so if your BP seems scared of the dangle method, this is something to try.