Hercules is almost 5 months and he's definitely bitey too! We usually tell him no and put a toy in his mouth instead. When it gets really bad we'll stop playing with him for a little while. Sometimes I even try to stick his own leg in his mouth for him to bite - so he can see what it's like and that it isn't fun!
Like dollymix was saying, when puppies are with their litter and they bite, the other pup will cry or yelp and then stop playing with the culprit pup. This teaches them that it is not good behavior. Of course it takes a while though. So try your best ouch and maybe that will help.
Good luck!
Brandi & Hercules |