I've had to try pre-killed before, and I used the CO2 suffocation with vinegar and baking soda. Normally I feed live, but I had just switched from 2 weanling rats to small adult rats, so I just felt better about feeding that much larger of a prey item pre-killed instead of live. I felt pretty terrible about doing it though, and my BP's have grown to where they can handle small adults without a problem. They probably could have handled them the first time, but it was just to ease my own mind :P






