Introducing new cat to old cat?

[Peanut Palomino]

My mom's boyfriend is moving in and he's bringing his cat with him. The cat is female and her name is Squeak.
I have two male cats; Olly and Jerry. John (my mom's boyfriend) went out of town for about a week a while ago and Squeak stayed at our house during that time. Jerry is a mainly outdoor cat so he didn't really care about Squeak.
But Olly is an indoor cat and him and Squeak didn't get along at all. Whenever they would get near each other they would end up just starting and growling and hissing and not moving for a while.

But within the next few days Squeak will be returning to this house permanently. Clearly I did something wrong with their introduction last time, so I want to get it right this time. I understand that Squeak and Olly won't be "buddies" for a while, but if you have any tips on helping them tolerate each other, it would be greatly appreciated.

And how should the initial introduction go? They seemed to hate each other last time, is there a way I can make it different this time?

 

[Jeanne]

You need to introduce then with a cage or clear glass wall between them. So they can check each other out without hurting each other. I did this with my older cat when we got a kitten. Our older cat hated her, made weird bullfrog noises, and it her really hard on the head so I knew then they needed to be separated. The kitten got her own room for a few days. They need to have there own territory. You also have to introduce them in calm quiet situations not when people are running all over and the tv is loud. It makes the cats more nervous. It might take a few days btw.

My cats are now best friends and Im sure yours will be too

 

[Louisha]

Induce them slowly by putting them together 15 minutes at a time then take squeak out of the room for an hour then repeat the process again. you've got to make sure olly still knows that you care so make sure you play with him when squeak is around.

 

[Ailsa McVicar]

Cat introductions should be done really slowly - you can introduce them to each other in cages so they can still see and smell each other or you can introduce them in the same room with yourselves supervising should any fur start to fly, in case this happens you should have a water spray handy.

Once you start introducing them there will be the usual growling and hissing and staring each other out but as long as there is no fights and flying fur then I think the introductions and them getting used to each other should go ok, but if they want to kill each other and cats CAN do serious damage to each other, then you may have problems to discuss. Also, you must not leave them alone together until you are 100% sure you can trust them together.

 

[gracey]

you have to introduce them slowly..here's a good article I found for you to read

 

[*Caution: Fresh Paint*]

Usually cats will accept another cat but sometimes they won't, like in your case. Introducing a new well... anything... will make them have a pecking order, Just like horses do. You'll probably have to let them have it out but make sure there is no injuries involved. Usually there isn't, but ya never know.
-Fresh--Paint-

 

[Bri]

i brought a 2 month old little girl kitten home to my one year old male and he HATED her for the first week. i called the vet almost in tears because they just werent getting along how i thought they would. the vet told me to leave them alone and they will learn eachothers boundaries and likes and dislikes. so i waited. they seemed to growl a lot like a horrible growl deep in their throat. they hissed they ran alll night and allll day. after about another 3 or 4 days of this it seemed to calm down. they soon began to chase eachother and tackle eachother and play fight. then they started sharing the same bowls and litter box. oh! thats important. makes sure they have seperate litter boxes and food dishes for a while until they are comfotable. it just takes time. its like having a roommate move i with you after youve been so comfortable on your own. it takes time to learn so just wait it out. things should get better.
hope this helps!

 

[Shayla]

Throw em in a box together
Shut Lid
They'll either love each other ;D
or you'll be left with one cat