Hello!
I posted a question here a few months ago about my two cats fighting.
We have two in-door cats, one we have had for many years now, and the other one we got a year ago as a 6 week old kitten. The older was fixed when we first got him, but the younger one was fixed about two or three months ago. Before he was fixed he started attacking the older cat. We had to separate them. When the younger was fixed he seemed fine around our other cat, but the older one didn't like him.
Now the younger cat is back to attacking the older cat. The older stays in another room the whole day until we shut the other one up in the bathroom for the night.
Is there a reason why the two don't like each other?
I hope I didn't confuse anyone. :|