Welcome to the board.
I agree that bristle worms are benifical to the tank, especially a reef tank. They are a great ditrivore or if you prefer great part of a cleanup crew.
Do a search on bristle worms and you will find many feel the same way, that they are good to have. There are some that are not good, can you post a pic?
If you don't want them send them my way.
If you want something to eat them a wrasse might work.
Thomas