Should I get a second dog?

Question:
 Last August we got a Rottweiler puppy. (He is a mix, but we do not know what he is mixed with). We often watch our neighbor's dog when he is out of town. That dog and my dog are great "friends". They get along, do not fight and so forth. Recently we were taking care of another friend's two female Rottweilers. Again, my dog got along with them great-- no fighting, no competing for food. Now that they have gone home, he is moping around, won't eat, and is basically depressed. I have tried to compensate by extra play and extra exercise, but he is not interested. My vet said this sort of seperation depression is common and he should get over it relatively soon. We have talked about getting another dog because we know he really enjoys other dog's company. We have cats, but they aren't as interested in playing with them. My question is.. what should we expect with another dog, and what is a good breed to mix with Rottweilers? One concern I have is the two dogs we were taking care of fought ALOT and viciously with each other. They never attacked my dog, and never were aggressive with him, but they went after each other all the time. Every night we had to pull them apart. I don't know if it was because they were two females or not (neither one was fixed). They live together, so they are familiar with each other, but it was a nightmare. I do not want this and this is my main concern with a second dog. Any suggestions? I don't know if this matters, but our dog is now 8 1/2 months old (and male). We are planning to fix him next month, as well.
Answer:
 My recommendation to people wanting to ass a second dog to their home is: 1) Make sure the existing dog is trained and socialized to your satisfaction. When a dog experiences a life change, regression in manners and behaviors is NORMAL. So the better trained, socialized and prepared to handle life changes a dog is, generally (but not always) the less severe and easier to work through the regressions are. 2) Have the existing dog altered before bringing in the new dog (if this is a plan). Adding another dog and then rushing into surgery is a lot of stress. Get the neuter done, give it a few weeks and then consider the new dog. 3) Match more to the personality of the existing dog. For example, two very dominant dogs in the house can be more than the average person is able to sanely manage. I suggest working with a rescue that will evaluate your entire house situation as well as your existing dog and help make the best match to everything. You should be able to have your dog meet the recommended animals several times before actually finalizing the adoption. A good rescue does all they can to ensure the best match as they do not want their dogs beng returned. as for breed, well, it depends on your dog. I would not go for something tiny and delicate - especially since your dog is at the beginning of adolescence and may play a bit rough - he still has a lot of mental development as well as physical at this age. He is a young adolescent at this point. But a dog that will be close to his size and that will complimant his temperament and hopefully not be as much of a threat to his temperament would be the best I think (without being able to see and eval your dog personally)
Answer:
 I think usually it's fine to get another dog as long as some things are taken into acount First of try to get another dog simular to yours this is because if you get a smaller dog or a dog with no guarding insticts [like a rottwhieler] this dog will get taken advantage by your present dog. secondly it may be a good idea to consider neutering your dogs so that terotry/food/toys etc do not make your dogs have fights. introduce them slowly and make sure you do not make one dog gelous e.g give one a treat without the other. Also exersizing,playing and eating together [seperate bowls] is ment to help the bonding process. Hope that helps.