Technically, it’s not a fight, it’s courtship. As I mentioned, as long as you don’t see serious visible injuries like redness on the side of its body, completely torn fins, Popeye from severe stress from attacks, the clowns will be fine. As the female grows & courting ends, the female backs away from frequently pinning the male but will still display dominance here & there, especially if you introduce an anemone for the pair to host. The female will own that anemone & will occasionally allow the male to come in, depending on the size of the men. The larger the men, the more room there is for the male to slip in & enjoy its home. She will even try to attack you if you get to close to the anemone, it’s in there nature & we can’t do nothing about their natural instincts. I suggest doing some reading on clownfish behavior in order to understand how these animals court each other & how they choose which partner will become male & the other a female. All clowns display the exact behavior, in my experience the tomatoes or maroon are the most aggressive when it comes to courting & hosting a nem. It might look like a fight to you but the animals are acting instinctively, which is the most natural thing for them to do. This hobby requires tons of reading & observation to understand the nature & biology of these animals. Believe me, I’ve had reef tanks for well over 20 years & I still come across things that I have never seen before that will lead me to do more research.