[Holmeshx2]

I am by no means as experienced as some of these people are but here is my 2 cents. I do agree almost completely with Maggieroselee. I really would not keep them seperated. Your nerves are probably on overdrive now with everything that happened but are you planning on keeping a 3 dog household all seperated for the rest of their lives? Highly unlikely and if you do highly stressful for you. They need to socialize with each other and other animals.

In my opinion the biggest mistake here that happened was you picking the puppy up. Your GSD was focused on chasing the ball which is a prey drive type of situation the other pup starts squeeling which generally will trigger something (which is why so many dogs loooove squeeky toys) its the animal instinct basically. So what happens when it hears the screams of the other animal?? You picked it up well now the chase is on and it has to get to it. It could have been prey drive trying to get the injured animal or it could've been him concerned for the pup it loves don't really no but either way it set him off and unfortunately the next thing that came by (your other dog) is who was used to release the frustration.

Not trying to lecture because you have taken on full responsibility which is great just trying to let you see exactly where it went wrong which was with picking the dog up. When 2 dogs square off because they are about to fight you are not supposed to move because it generally sets one of the other dogs off to attack same goes with using an E collar in that situation picking the pup just set off the chase and through the poor dog into over drive basically. Just learn from the mistake is the best thing you can do.

I would definitely go with MRL's suggestion and keep the 2 GSDs together but SUPERVISE she never said just let them hang out and be best buds keep a close eye on them. If the older one wanders off in the house fine let him get away but do not let the pup follow the pup stays with you. When the pup is napping in her crate take the older GSD outside ALONE to play ball and let him work off some energy. Save outside high play time like that until the pup gets older and can handle being knocked around.

I also might possibly when the pup is calm and worn out hold her and bring her in to see the injured dog if he is up to it. That way they still see each other but without you letting too much interaction so the dog can heal. Same thing with the older GSD when he is worn out maybe try letting them see each other through a baby gate and see how he reacts if they loved each other before you dont want them to live in fear or anger towards each other.

The only thing that made me say ALMOST with fully agreeing with MRL is not that I disagree with her but I slightly agree with Selzer on one thing. Not everyone has a place like that to go off leash. Plus if they are not used to it, it may turn out poorly and you want all positive experiences. If you are worried about that situation possibly let your pup stay off leash so she stays next to you (much like the adorable glory B) and if your adult GSd doesnt do well off lead or your worried about other people around maybe get a long 30 ft lead to put him on so he can wonder free from the pup and do his own thing but still under your control and keep a short leash in your pocket for the pup in case you need it.