Successfull intro?

[Jacob Adams]

Hey everyone, Last night I had my three gerbies in a split cage and the older one somehow got over the partition to the 2 younger ones. this morning they are all doing great. they don't seem to mind each other. they are even sleeping, grooming together. Is this considered successful? I have been keeping a close watch on them just in case but they haven't shown any signs of aggression as far as I can tell.   Thanks in advance,                               Jake