I have two older dogs and recently acquired a foster pup (likely to become our pup :)). One of our older dogs (bouvier x) has always pulled on walks, ever since she was small. She is about 80 lbs now, and pretty strong. As a younger dog it was recommended that we use a prong collar on her, and we did, but we haven't been consistent with it. She is 9 now and still pulls just as much. Our own fault for lack of consistency, I realize that.
The puppy is a newf x. She is only about 5 months old now, about lab-sized at the moment, and she is also a puller. She is half-choking herself on a walk because she is pulling so hard. Between the two of them my feet are barely touching the ground on a walk!
I want to at least stop the puppy from pulling, both of them if possible. What is the best way to do this?