Feral With Other Cats Fighting

[mikia]

hi everyone. So in my house we have three cats. One is a feral who as a kitten was hit by a car and taken in by my grandmother. After she died, the cat came to us. It has been two years but yet I still have her and the other two fighting. One of which will literally fight with her under the closed door. I have no idea how to get them to get along at this point. I’ve tried play and I’m not around enough to do a punishment reward system. Any suggestions?

 

[shadowsrescue]

First off, all of the cats spayed/neutered? Secondly did you do introductions between the cats when the "feral" cat arrived? Cats do not do well when they are just thrown together and expected to get along. They are territorial animals and when something threatens the territory they will fight.

I would start by completely separating the cats. They need a complete break from one another and then you can try to start again with cat to cat introductions.
Here are a few articles
How To Fix An Unsuccessful Cat Introduction
How To Successfully Introduce Cats: The Ultimate Guide
A Simple Little Trick to Use During New Cat Introductions

Also a great video