Welcome to all of you! Your babies are precious and so are the parents...Lovely boxers...Ok, about the weight....Ender you can definitely see his ribs, but you want that to a certaing degree in a boxer, it's part of the look. He is still a pup and is growing a lot....I would much rather deal with a boxer a wee bit underweight rather than over, it's harder on the joints. He is quite tall, but he could be close to peaking as far as his height. What kind of food are you feeding him and how much? What you can do is give him a protein snack during the day...A lot of people take a mixture of low fat, plain yogurt, mix with some peanut butter and put it in a Kong, freeze for a few hours and let them go at it....Cottage cheese is also good as well