Clownfish aggressive towards my blue tang.

[UncleSalt]

Tang and Clownfish have been together for over a year. They've been fine all along, but suddenly today I saw the clownfish being aggressive towards the blue tang.

He doesn't always seem to care, but every so often he lashes out at him/her for whatever reason. I noticed while looking today that my blue tang has a few bruises on his/her side that I can only assume are from the clownfish.

Should I give them a few days to see if they settle it, or should I do something to the clown?

 

[nereefpat]

Tank size?

Is this a pair of clowns?

Do you have a sump? You could catch the clown and put it in timeout.