I have belgian malinois - 3 at the moment. One is a 6 month old foster, very gentle and submissive, definitely NOT the problem. I also have a 9 year old male, same temperment as the puppy, not a problem. Then there's my 5 year old female malinois (she would be considered sharp). She is not accepting the puppy into the household. I've been introducing them gently but I still would not trust her around the puppy if I didn't have her on a leash. If I can't get this resolved I'll have to place the puppy. I'm looking for others suggestions. Thanks!!