Bad fireworm?

[ryshark]

I’ve been noticing a few of these coming out of the rocks lately. So far I haven’t had any fish losses or coral damage I can see. One night a small firefish/dartfish went to sleep right next to the hole of one of the biggest worms in the tank and come the next day the fish was fine. I cant tell if it’s a very bad bearded fireworm or a less aggressive type of fireworm, eurythoe complanata. What do you think?

 

[Cstar_BC]

I think you are correct with complanata, bearded fireworm seem to have a double row of more dense bristles .

 

[KJ]

I’ve been noticing a few of these coming out of the rocks lately. So far I haven’t had any fish losses or coral damage I can see. One night a small firefish/dartfish went to sleep right next to the hole of one of the biggest worms in the tank and come the next day the fish was fine. I cant tell if it’s a very bad bearded fireworm or a less aggressive type of fireworm, eurythoe complanata. What do you think?

Bristleworm .

 

[NowGlazeIT]

Looks like an old bristlewoorm to me