hibye
Reef enthusiast
99.9% of bristleworms aren't poisonous. In fact, they are excellent scavengers, one of the best you can have in your tank. I wouldn't take out any more if I were you. It's usually only the bright red ones that are poisonous. I've never seen a red one myself, but that's what I've read/heard.
the one in my ten gal is orangest red should i take him out and i agree with you rc they are good when small but once they get big they can hurt ya