This one's for everyone who feeds live mice. Do you breed your feeders or do you buy them from the strore as you need them? I've thought about breeding them but idk what would be more efficient... I've got 4 ball pythons, 3 are around 300 grams the other is around 450 grams. All estimates of course. Lol. I really need to get a scale. Any input would help alot. Thanks in advance.