I'm not advising getting rid of it, just keep to one type or pair of clowns unless you have a HUGE tank.
Some clowns do seem more aggressive, GSM,Clarkis, but you'll always find the exceptions.
I have a maroon that's aggressive, but only to me!(bites the heck out of me).
But I can deal with that!
If you really want something different, take to LFS for store credit.
Good luck!