Well mice, you dont want, bcz your snake will eat more then they can reproduce since such small meals, you want to get on Rats.. Secondly MOST big breeders feed live simply bcz they do have rats breeding, but iv pruchased a few live feeder snakes, and its not hard at all to make a transition, in the end they will eat to live, as they are opportunistic eaters, They wont starve themself to die...Like i said if your able to look for up coming Reptile Shows 1-2 hours away if not closer, Many people there feed F/T (it took me 1 live rat pup to transition my 1 250g bp to transfer from live mice to f/t rats aslong as u keep them dry wile thawing, warm the face up a lil more with a lightbulb/hair dryer and zombie walk it snake most likely will strike) but as i said at the reptile show alot of breeders there smaller ones feed F/T (from what iv found) as its easier to stockpile and worry free for snake... Although there are some snakes that well just never even look at F/T