I suppose I should give the whole story. Here goes.
My first dog was Diver, a Weimaraner. Sadly he was from a puppy mill; at the time I had no idea what happened at puppy mills. I had him for a year before getting a Siberian Husky. They were perfectly fine for a long time, getting along and having no problems. Until I believe my mom and I went on vacation and had to drop them (and the Chihuahua) off at a kennel. It was both of their first times and hadn't really been socialized because I don't really have any place to do that at. Shadow (the husky) was so frightened that the woman dragged him down the hallway with all the dogs barking at him. He was so small at the time that he had no chance. Now I feel utterly guilty about not running down the hallway and stopping the woman. He started to grow bigger and started fighting with Diver over... not really anything, just fighting. They would give each other looks and start growling then jump at each other. I guess Shadow had instinct and used to hurt Diver, I stupidly constantly jumped in and ripped them apart. Now Diver, I guess you could say he's experienced fighter now, can put Shadow on the floor but not without being incredibly scared. It's become too much of a challenge that I'm not willing to risk either of my dog getting seriously hurt or myself losing a hand. Now they do nothing together and cannot be in the same area at the same time. One is always locked up or one in the house and the other in the backyard.
Diver is a good boy, a little neurotic and seemingly autistic, he likes children and is always happy to see other dogs when walking. But Shadow hates children, hates boys, hates other dogs and really is a liability. I'm looking for the right kind of muzzle so at the very least can walk the two together without worrying about a fight breaking out. It disturbs me. I can keep them under control alone, but they lose all attention when around each other.
When at feeding time both will growl at each other if they think the other is going for their food. I feed them both locked in their cages. Sometimes when Shadow is locked up and Diver merely walks past his cage he'll growl at Diver. It's quite a task to have this situation but I love them both and are both equally sweet. Shadow is incredibly cuddly and loves his owners. And I'm worried that if either were given up that both have their drawbacks that no one will take them and would be put down.
I would like to fix this problem so that they could be normal and happy. But I'm afraid to approach this problem in the wrong way. The last time they were truly out together they got into a fight and I pulled Shadow's jaws from Diver's ear, Diver inadvertantly snapped and got my hand and since then I worry too much for each other's safety.