[Foo Lyn Roo]

So, I've become the proud mommy of a darling little girl GSD
they are guessing her age at around 10 months, we initially thought she was a bit older.

I have an existing GSD Echo, he's a big 105lb boy.

She just came into our home yesterday, so I don't think anything is really bad just wante to be prepared/stay on top of things
and get some opinions

The new girl Indigo, we've named her
Has zero agression towards humans, I've pet her, and even put my hand in her mouth (slowing getting to that point w/o reaction) while she was chewing a bone, she just stops and looks at me and wags her tail. So I'm confident there are no human issues.

However with Echo, Indigo will go and take his chew bone right off of him and walk off with it. (Echo doesn't react) If echo however gets too close when she's chewing, or has a toy, she will growl and snap a bit, nothing dramatic or vicious. Sometimes her tail still wagged.

I haven't done much to interfere, other than observe and of course keep them apart when they can't be directly supervised.

but is there anything I SHOULD be doing. I understand there will be a large adjustment time, and like I said im not worried because she is a sweet girl. I'm just looking for any tips or hints you might suggest.

I have thus far fed them apart, as it was reccomended. And plan to do that for a long time or forever whatever need be.

 

[BowWowMeow]

First, thanks for rescuing and congrats on your new addition. It sounds like resource guarding. It is a little trickier when the dog does it with other dogs but not with humans. What I would do is keep high value items out of the picture when you have them together right now. If there's nothing there to guard then she won't do it. Then you can start working on all of her basic obedience including the "Leave It and Drop It" commands. You can then start to trade her for higher value items (a hunk of cheese or whatever) when you issue the commands. You get the item, she gets the higher value item. After she's got that down solid it _should_ transfer over to her interactions with your dog. Just be sure you praise a lot when she's doing the right thing!

 

[Timber1]

As a rescue guy, if would be helpful to knew how old Echo is. Also, if Indigo just showed up it takes a while.

Nonethless, it sounds like both dogs will work it out. As someone that does rescue, there is almost always some aggression, but it does differ in your case, because the new pup almost sounds dominant.

 

[Foo Lyn Roo]

Sorry, Echo is 14 months old.
The rescue they are estimating at around 10 months.
Echo like I said is a large dog and she definatley much smaller
than him, but yea she's behaving dominantly.
Echo always has been more passive, but he is very self confident.
He isn't cowering from her he just doesn't seem to mind her pushing at all.
Today they were more with the equal playing, she took the ball from him less, wether it was his not letting go or her just not trying hard enough.
Thanks for the advice

 

[Timber1]

One last note. There behavior will change over time, and my guess is for the better.

 

[Foo Lyn Roo]

So far so good working on day 4. The two seem to be getting along well. I did take away all toys for now.
Echo suffers from bouts of Pano, and of course wrestling around these past few days he's in a full on attack so not chasing balls for him for a few days will be a good thing.

Plus its really helping get Indigo aclimated to correct potty proceedure. They say she was house trained but, well the first few days, lets say we had to get use to one anothers schedule.

Having no toys in the yard, helps get the message to go, and go pee and poo. I also find her taking lead from Echo in that direction which is great because I can ask him for a pee or poo and he will supply me ! Once they are pottied and fed, i break out a few toys to chum around with, they are doing well with this. I just don't leave any "hanging around"

Their chew bones are still out, since Echo is an AVID chewer and she, once she realized what it was for, has grown to love it too.

But with that, she will take his and he just says okay.. and picks up hers, so no big deal there.

Indigo is crate while we are out of the house so there won't be any confrontations while we aren't able to watch them.

There is one particuliar squeak toy she adores. I think Im taking Bowows advice and she wont get that back until she shows a little more manners.

They are starting to lay together, and play with one another (agression play etc) so I have really good outlooks on things with the two of them. She is even rolling on her back for him (he's done this to her since day one.. I think he's in love LOL)

 

[Timber1]

The dogs will be fine. I had to smile about your comment saying they say the dog was house trained. As a rescue I have taken a few so-called house trained dogs, I guess except for the poops in my house.

On a more positive note, mine have been crate trained.