:iagree: that is the only successful way I've heard of doing this with aggressive clowns.Large aggressive clowns pair much differently than others like occelaris, so the same methods dont always work. a lot of the time the female will kill the incoming juvinile. The best way to do it is to introduce the smallest moroon (so that the clown will be sexless) you can find in a seperate container so that the female can see it. A tupperware container with holes in it is usualy a good choice. Once she stops beating the container try releaseing the little one. After a while of bashing, she will hopefully stop. If they dont, you will have to bring the small one back and get another one. sometimes it is just the actual clown that you try intorducing for some reason.