Oh Kate, I am so sorry you are having this issue. You've already had some good suggestions so I won't repeat what has already been said. I see why you wouldn't want to crate either of them so separate rooms are a must for feeding times. You are going to have to watch closely to see who is the instigator and then work with them. Often it isn't the dog that is vocalizing and even more often the signs are very subtle. You are going to have to redirect the attention of the offender as soon as there are the slightest sign of tension happening. Since Bridie is a smaller dog you probably pick her up on occasion. Please make sure than when you go to put her back down that you do not put her facing Harper. It's butt to face around here whenever a dog is lifted and then put back down in the presence of another dog. The dogs here learned right away that if I growl, CUT, they desist. I use it sparingly but it seems to slice right through the tension. They always get praised for complying. Fingers crossed that you can nip this in the bud. You worked sooooo very hard to get Bridie to you and out of the mess she was in and equally hard to turn Harper's life around. I'll be rooting for you all.
Joanne
Joanne
