I haven't, but in general, if it is competeing for the same food source, what other harmful or beneficial stuff is it going to kill? I'm not sure, so if some one knows better please fell free to correct me.
What kind of filter are you using, what kind of sponges/bio balls/wheels? Lighting schedule, food schedule/what are you feeding? I feel it is better to treat the cause than add more stuff to try to get rid if a problem, otherwise, it will keep coming back,
IMO.