Hi, I'm new here so please be gentle
[I think this is gonna be a long post, so, sorry.]
We have 2 existing cats Ria and Tia [mother and daughter, Ria came to us pregnant from a Back yard Breeder, so has always been with Tia since she gave birth] and on Saturday introduced 2 new cats, Maggie and Millie[also mother and daughter coincidentally], we adopted them from our local rescue on Saturday.
I had read up on introductions etc. and had settled on first week just smells, second week introductions. However I got some advice that should've worked[I think it was personal wrong timing rather than wrong advice] to let our resident cats briefly see the new cats through the gate to the 'safe room' the following morning as the new cats had settled already.
At this brief meeting one of the new cats[older] hissed at Ria and then after a few more seconds of just looking at eachother, we closed the door. Then Tia came up and we did same again, this ended with her running away[she usually runs when sees cats, even outside...but is friendly]
Well, since then Ria is hardly coming into the house
the most she is doing is the dining room and utility room[where food is], when she is in the house she is asleep, and if not asleep then goes off outside to wherever she so wishes.
Tia is coming in the house more than Ria, and is even coming upstairs and occassionally taking sniffs at the 'safe room' door, but then trots off downstairs.
I just want to know if there's any easy way to 'erase' her from being scared to go upstairs, and to be able to sleep in my parents rooms as she usually does?
Will it just take time? And if so, how much?
I've also heard that the new cats, if left in the safe room for too long, can become territorial of that room...Is this true? And how can I work out a balance between getting existing cats to settle, and not letting new cats get terretorial?
Sorry for all the questions and the long post, it's just that I want out existing cats to feel happy enough to roam the whole house as they usually would
Thanks for reading this far if you have.