2nd Dog - How long does it take for them to get along?

[Lisa Goldstein]

I have a 4 year old golden doodle who is amazing, loving and sweet.  We brought home a 2nd golden doodle puppy 3 weeks ago (actually a 3rd dog, but the first dog, a lhasa poo, pretty much hides all day). I knew it wouldn't be love at first site but we've had lots of dogs so I wasn't too worried.

Whenever I take the 4 year old and the puppy out for a walk on the street the older dog is extremely aggressive with the puppy.  Am I supposed to allow this?  The puppy just lays there taking it.  The older dogs tail is wagging and I've seen her play like this when the older dog was younger.  

Help please :)

[Harrison & Brodie]

When we added our second doodle to the family, there was a 14 month difference in age. Both are kennel trained so we used that as a play time "Timeout". They got along really well, but our older doodle needed some alone time with us. Now we cannot separate them. It is an all day playtime. Sometimes they carried away just like kids, so we still use the timeout..

Best of luck :)