Hello and congratulations on adopting your Pomeranian! As to differences, I would say other than in physical characteristics, their aren't many. Mine tend to be pretty laid back when compared to my Toulouse pair and hardly ever aggressive: Even then, it is only during breeding season to protect their mate or nest. They are "all bark" and for the most part "no bite" here. Although, I did remove a broody goose off her nest last season. She was fine when I picked her up and got her half way out of the barn when she turned her head and latched onto the end of my nose: OUCH....lol.