The other guy
also thinks that 6 lines may eat them but not as a preferred food source. Would you? Get a nasty mouth full of prickles & bristles. Yuck. The little ones are ok but I've had my big ones (6"+) also attack my corals. Bit my red brain in 2 spots. Had to remove the coral into my seahorse tank & hoping to spot the big monster next time it comes out again.
Good luck & don't worry. Most humans can outsmart bristle worms
, it mainly takes patience & effort.
Anthony