Aggressive blue pitbull
We got our first pitbull about a week ago he is now 7 weeks old. He has been biting me my kids and our other 2 dogs, he growls and barks when he gets punished sometimes just for no reason. We had a rott puppy a couple of years ago that did the same thing as a puppy and then when he was about 1 he viciously attacked me and my daughter in our kitchen. I do not want the same thing to happen in this situation with our pitt, I have a 5 yr old son and am worried. Please any advise.