I'll just add that one reason that some snakes may want or even need more food is if they are sharing their meals with intestinal parasites. From the photo
you posted above your snakes do not appear to be obese [yet!]. Have you ever taken fresh stool samples from them to your vet to check? I would, & maybe
that will give you an answer as to why they want so much more to eat. If they actually have issues, you'll be saving both their lives AND some money on your
future snake-food expense.
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