16yr Old Existing Female Cat Keeps Stalking and Attacking New 3yr Old Female Cat

My cat problems started last week... I felt guilty every morning leaving the house and kept think my 16 yr old cat (Albert) needed some companionship while I was gone for 8-10 hrs. Albert (a she) lost her mother cat 3yrs ago and her sibling male cat (Matty) 2yrs ago to feline leukemia. Albert has been checked since Matty passed and is okay.


Last week I brought home a new cat, Elaine, a sweet, affectionate 3 yr old that hasn't quit hissing since she's been here! I've never seen
Albert act the way she is at the moment (posturing, stalking and jumping on the new cat).

I bought some Feliway last week, but it doesn't seem to be doing much good - although I think Albert is being a bit better (her tail isn't as fluffy anymore).

I have kept the 2 cats apart, and tried to let them get used to each other's scents (the cat carrier that Elaine came in had Albert's blanket in it). How do I get Albert calmed down and the other kitty not so scared? They've got to start tolerating each other SOON!


Reply from Liz (Editor): These cat problems will, I'm absolutely sure, get better over time. It's still very early days yet.

Both cats are in the process of going through a big adjustment. They have to get used to each other and need to go through this process of hissing, yowling etc. at each other, as they need to figure out between them who is the boss.

Unless they're physically attacking each other (I don't mean the odd swipe, stalk or jump at each other - I mean really fighting) the best thing you can do is just let them go through this process and not intervene too much. Trying to stop it will likely just delay them getting used to each other.

If you're nervous about leaving them together at the moment when you're out, I'd separate them then, but you can let them be together when you're in. This page gives more advice on how to get two cats used to each other. It talks about introducing a new kitten to an existing cat, but the principles are the same for and adult cat:

Introducing a New Kitten to Your Resident Cat

I understand how difficult this is at the moment, but I'm sure these cat problems will improve soon. The behavior they're displaying is normal and as Albert has lived with other cats before, I'm sure she'll accept Elaine (and be grateful for the companionship) before too long. The fact her tail is less fluffy is a good sign and suggests things are moving in the right direction.

A Feliway diffuser can take up to a month before it really starts to make a difference, so I'd persevere with it for at least 4 weeks.

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