Thanks for your reply. One of the reason I want to switch from live to frozen is we cannot get live rats in alberta so I would have to feed multiple live mice which isnt bad but would like to just feed 1 prey item rather than a few. Its not a big deal. If i do feed live I was told that I have to gut load the mice first. Is that true should I buy the mouse or mice a week ahead and make sure it is fed well?