Dorvillidae worm good or bad?

[Neseem]

Noticed a few of these little buggers going in and out of tiny holes on my Hammer coral. Are they harmful? Thank you!

 

[king aiptasia]

if they are, no they are not harmful

 

[Neseem]

if they are, no they are not harmful

I'll try to get a pic but after looking online, they looked the same. Thank you!

 

[king aiptasia]

I'll try to get a pic but after looking online, they look the same. Thank you!

sometimes they look simitar to other types of worms like the Eunicidae without magnification, most Eunicid worms are harmless also despite the reputation. as a general rule of thumb, bad hitchhikers will do bad things soon through the quarantine period

 

[king aiptasia]

also as a general rule "ugly" hitchhikers get blamed on things whether they do it or not

 

[Neseem]

also as a general rule "ugly" hitchhikers get blamed on things whether they do it or not

Thanks for the information! I QT all my corals and have had these Hammers in there for almost 3 months (dipped several time during this period). They seem healthy and open up really nice! I noticed the little worms early in the morning with a flashlight. Soon as they see the light they slip into some opening and disappear.