Now my case is not a normal one. I originally had three dogs but there is a nice terrier stray we found, and I mean nice she always kisses and is very energetic, but the third oldest is a pomeranian mix(mutt) he is and always has been very mean I myself have not made him that way but my father who no longer lives with us made him that way and he is also very very energetic

My question is how do I get them to get along, I have already attempted to get the to get along, but the results were bad he ended up bitting her and niping and bitting and growling, I even had to hold him on a very short leash so he wouldent do it even the i could feel =him pulling with every muscle in his body to get to her

please any good help is appriciated not- "put that mean ass dog to sleep", or anything like that