[JadeD]

When I bring a new dog into my home I keep my current dog(s) separated from the new dog except for a few times a day with my supervision the entire time for at least the first week to make sure they are getting along. I increase the amount of time the new dog is with the current dogs.

I am alpha at my house as far as the dogs are concerned so I make them behave. I do not tolerate fighting among them. I currently have an 80 lb English Setter and 3 Yorkies and they all get along great. I do crate the 2 younger Yorkies (almost 1 year old) if I will be gone for more than an hour, but even with me going for 45 mins I have not seen any evidence of any fighting among the 4 dogs while I am gone.

I would separate the dogs for most of the day. Keeping one crated and the other out with you and then switching. I would have your current dog out more than the new dog though as this was their house first. Have the 2 out together when you can be right there watching them closely and feed them separately for now, at least until the one is healed properly and then feed them on opposite sides of a room at first and stand between them and do not let them fight while eating. You can slowly move the bowls closer together over time.

Good luck. I am sure these dogs will learn to love each other, but they need to know that they can not fight like that. I would not leave them alone together at all until they have proven that they do not fight. If mine try to fight I break it up immediately and remove the dog that tried to start the fight from the situation, usually going into the crate for a time out.

Good luck with the new dog, I hope they learn to get along well in the future.