Aggressive German Pointer
i have a five year old German pointer and pit bull mix. also, i have a two year old beagle and Maltese mix. when we first brought the the beagle home they did not get along. but after a couple months they haven been for over a year. lately every time the German pointer gets near her she tries to attack her. the vet told us that we did to get rid of her, but that is not option. what should we do?