differences in sizes?

[Gibbs&JackBlack]

I recently adopted a dwarf hamster (age unknown) from a bad situation. I couldn't really see him in the bedding when I picked him up and let him alone for a few days.
Now that he is out and about I'm amazed at how much bigger he is than my other 2 dwarf hamsters (about 1 yr old). He's a real butterball! He/she was kept alone and no other hamsters in the house so there is no chance of pregnancy.
He's a lot more round than my others and bigger overall.
He's got the classic markings of a Campbell though.
He's probably half the size of my syrian, whereas my other dwarfs are about 1/3 the size of the syrian.

Is there a lot of variation in the size of Campbells? Or do I just have a fat hamster? And does it matter? I shouldn't cut back on his food or anything should I? I don't give a lot of treats anyway, just food and a bit of veggie a few times a week.

[Hamtastic]

Just like syrians are all different (and robos as well), Campbells / hybrids are pretty different too. There are healthy winter whites at 35-40 grams adult weight and there are breeder WWs at like 80 grams or more. There are healthy boy robos at 26 grams and there's Pompompoms' Dasher who is ~46 grams.

What you have to determine is whether your dwarfy looks obese or whether he's just big boned and normally chubby. If his head is too small for his body and there are too many folds, he's possibly obese. Either way, I'd just proceed with a healthy diet, and if he's obese, he'll normalize. If he's naturally big, then that's fine too. Some hamsters are unmotivated and are fed junk food, which can get them overweight. My Isabel's a petstore female hamster and weighs 62-63 grams on a healthy diet. She looks chubby too, but not unhealthily.

[Gibbs&JackBlack]

Thanks, his head seems proportionate so he must just be big. I think with a healthier diet he'll normalize as you said.

[Mikayla]

My robos were different in size and they were siblings! Delilah was always a good 3 grams more than Phoebe after the separation.