Has anyone used a pheromone diffuser to help decrease aggressive behavior in their cats? My boyfriend and I got the spray and it seemed to help, but the spray ran out really fast. We have 3 cats who all kind of wrestle with each other, but our two males get into slapping contests and REALLY don't like each other. It's stressing them both out.
Which brand would you recommend, if you'd recommend any of them? Anything else we should try?