I thought I would include a picture of the new kitty. https://www.facebook.com/photo.php?...et=a.10101317979225884.3368467.2327462&type=1
A fight is my biggest fear. Did your cats ever get along?
The newbie was a foster cat so I just separated them until he found a home. But I do have 14 cats and everyone gets along at least reasonably well. Some ignore others and some will swat ones they don't like as they walk by. But there are no actual fights. Nothing I have to break up and none that cause any harm. I have a lot of experience introducing new cats both foster and permanent and I am telling you your guys sound like they are doing great. Just relax and keep an eye on them. Have a squirt bottle nearby just in case but I really doubt you are going to have any problems. Also if you are really freaking out cats can sense your mood. Try to be calm. Some of my guys that have ended up being best friends started out hissing and hiding. They will be fine.
Thanks again for your advice. We've been keeping my door open (with supervision) so they can interact. She growls and hisses and hides under the bed while the old cat just sits there and stares at her until he gets bored. I know I'm being overly worried but they will eventually have to tolerate each other right?
The behavior is totally normal. Old cat just told New cat that he is the boss and doesn't take any crap. New cat is going to test the boundaries just like a little kid. They will eventually work everything out. They will probably become friends if Old cat is tolerating New cat so well. Worse case they will just ignore each other and co-exist. I wouldn't even think about the final outcome for at least 4 weeks. After 1 month whatever the situation is at that time will probably be where it will stay. I know it is hard to wait to see what happens but everything is going well so far.
You know what...I would leave them alone together and go out. Leave all doors/boundaries open and let them work it out. You are probably feeling very tense, which they probably pick up on. Really. Go out and let them figure it out.
Please don't give up on them. I adopted my new kitty in June, 10 months after my old cat Maxine lost her best friend and litter mate from CRF. Maxine wanted no part of it. For the first couple of weeks there was a lot of hissing and growling and the occasional fur flying encounter. Eventually, they started to co-exist more peacefully, with Maxine simply trying to ignore/avoid Lana. 8 months later, they are just now starting to become friends and have started sleeping together on the bed with me. I even caught them grooming one another the other day. Believe me, at the beginning I had my doubts that they would ever get along.