Unfortunately, this is a result of clownfish hierarchy where the female clownfish are much more dominant than the males. They become greedy and try to eat most of the food that enters the tank (which is one reason the males don't grow as large). They often become aggressive to protect their home which may be an anemone, a nesting area, or the entire tank. If it attacks your hand when you're trying to clean the glass or it won't let any other fish near its zone, you likely have a female clown. Often if you separate the female for a week or two into an acclimation box or sump, there may be a change in her behavior, and you will quickly see the male come out in the open
2 nights ago my clownfish were fighting…grabbing gills and locking mouths. Yesterday one was stuck to the filter. I put one in a hatchery and he laid on his side all night. Today he is swimming around fine but he has these blisters around his mouth. Is this fighting wounds or some disease? Didn’t have them until the fights.
