I have two male cats, two brothers, who lived in peace until the age of three years. A third cat - passage for a few months - has upset their balance. One of the two brothers tried to dominate the house and chase each other. After months of hardship, I tried Feliway on veterinary advice. I have two or three permanently connected. Cats feel comfortable in these parts. Not only, he no longer brawl, but they are more relaxed.
