That's the bad thing about rescuing ball pythons.. they won't eat or they eat A LOT. I rescued a large female almost 8 months ago is only about 1,900 -2,000 grams. (I Can judge weight being a chef, my scale is also broken sadly.. ) but, since we've had her we have only gotten Her to eat once, And She took a rat that I thought would be to big And just destroyed It! It's a good thing to know.you rescued more of these snakes, not everyone does nd sadly so many die. I wish you better luck then us, but the only advice I can think after all that is give them a little more time, or if they loose anywhere from 30-50 percent of there body weight... ask about force feeding as a LAST RESORT. I rally hate hearing that a ball has to be force fed. But some times they must. Oh, just in case if you notice signs of R.I.'s you should take them to the vet asap. That could be a reason why they don't.. (that is my personal experience ours that has the R.I. doesn't want to eat but is hungry) again good luck.