I would say Ryle stopped growing at about 8 to 9 months old,he is now a whoppping 4lbs. at 14 months, I don't think he will be getting any bigger unless DH doesn't stop giving him so many treats
. Fancie Pants is 5 1/2 mths.old and she weighted 2.9lbs. today at her vet visit, I am sure she will be getting a bit bigger.