Does anyone know at about what age a glider stops growing? Mine are 5 or maybe 6 months oop and it seems like in the last month they had a major growth spurt! Their appetites have also dramatically increased in that time. At what age are gliders "mature," and how long/big do they usually get? I'm surprised at how big they've grown since I got them, I guess

About 98% is done by 1 year OOP, however, they can still grow a tiny bit, and will do some filling out-most noticeable on males through the chest when unneutered, between 1 and 2. Technically, they are fully grown and fully mature by 2 years OOP. Most of what you'll really notice will be in that first year tho.
HTH

I think usually by the age of one year they have reached their adult size....however,....I have a little boy who grew a LOT between the age of two and three years....up until the age of two he was very, very small and then between two and three years he had a growth spurt and turned into a big fellow...not fluffy...just big boned and heavily muscled....

my little girl's a little less than a year old now: she's still rather small: and her tail's nearly twice her length... I think she's going through a "long and lanky" phase. It's just a little weird seeing her with my 1.5 year old male, who's been filling out a little lately: I suppose "big boned" would be a good way to put it: he's not fluffy, just very solid... I hope she grows a little... she really is quite small...

My oldest glider is almost 8 yrs. old and she just recently put on a tiny bit more weight. She was always extremely thin and lanky and weighed in at about 64 grams. I just recently got a little boy and ever since he came into the picture she has started to gain weight. I think she is worried that he will eat all the food before she will. I'm glad she has put on a couple grams. I think the last time I took her to the vet a couple weeks ago she was actually hitting the 80 gram mark. It is easier to hold her now and not worry about squishing her.

Great question, I was wondering this as well!

Oh boy well in that case my Ana is going to be HUGE! She's already bigger than her dad and fluffier than her mom... and she's only 5 months!

She does look pretty big from the picture> But she's beautiful!