clown attacking clown

now i have another problem, my bigger black clown fish is chasing my black onyx around the tank relentlessly and bitting her, at first they were fine with each other but now this, i think it might have to do with the anemone, should i separate the two or will this stop, they are doing this little shaking thing every now and then to each other but im afraid he might kill her, what should i do?

I'm no expert but it sounds like they are displaying dominance. If it's a large female and a small male then they will work it out. If it's 2 large females then I hope your tank is big enough for them to each have their own area.
Just my 2 cents.

My black clown is larger than my onyx clown, I just assumed the onyx was female.

All clowns start out as male and the bigest most dominate one changes to female (clowns will not change from female to male) (other saltwater fish mostly deep water ones will change back and forth) some clowns just dont get along sometimes 2females will get along and even lay eggs. Most of the time not. Setimes clowns.just dont pair up jist lile little people they are not compatible catch the smaller one put it into a net breeder and watch them for a.week or so then try turning it loose and.watch thebiger one will kill the smaller one Iit sounds like to me 801_427-0939 call me any time I have a good idea what goes on with clowns

Commented on this in your other post.

Providing more room is one way to do it. Making more hiding places and a different looking environment can also calm them down. We often speak of how to avoid territorial aggressiveness. Putting fish in the tank at the same time is one way. Changing around all the aquascaping in an existing tank is another. Adding a stand of Macroalgae also works. Unfortunately, none of this will have much effect on this mating dance.

Aloha