Quote Originally Posted by Malum Argenteum View Post
Well, I can't speak to the habits of BP keepers specifically, but for other species there's some usefulness.

Snakes that brumate are best weighed before and after to gauge whether humidity and temps were acceptable (weight can be lost through transpiration if air is too dry, and by excess metabolism if temps are too high).

Novice keepers might (try to) use weight comparisons with other people's snakes as a sort of 'sanity check'; this, as mentioned, isn't very useful since growth rates depend on feeding habits, temps, genetics, and so on -- so an X age snake may well be half the weight of another X age snake of the same species and both could be doing just fine. But for a novice keeper -- and any keeper, really -- simply knowing an animal's weight changes over time is one more data point in determining whether the animal is in fact healthy.
To each their own but I still can’t get there 😀. Outside of breeding factors, especially since all of my snakes are only pets, I see no useful purpose for weighing snakes or their prey. All of my snakes get lower temps and fewer meals during the winter. A few of the carpets, and my male bullsnake, will go off food from Nov/Dec - April/May. I make sure their temps are good, that they have fresh water, I offer them food once every 4-6 weeks, but I NEVER weigh them. I’m sure they all lose a little weight during this time, but it’s nothing to worry about, and they’re all still perfectly healthy. They’ll put the weight back on when they start eating more again. I base my snakes health on their eating, pooping, shedding, and body condition. If all those things are in order then their actual weight is meaningless to me. YMMV