Has anyone ever seen these worms before?

[Jeromeit]

I'm a bit concerned that they are a type of internal parasite. All fish seem to be fine except for a citron goby that has always been skinny..

 

[Humblefish]

That's not a "fish worm" ... Maybe a Syllid Worm or hydroid of some sort?

@Bob Loblaw Help me out here

 

[Bob Loblaw]

Having a hard time making them out. Are they on the glass or free swimming? If on the glass, possibly a Dorvilleidae or Syllid as mentioned above. Free swimming, possibly an epitoke although they appear to be moving pretty slow for that to be the case. Is the wrasse eating them?

 

[Empress]

Are they good or bad?

 

[Jeromeit]

The wrasse and other fish are eating them, I noticed this during a water change. Free floating.

 

[Maritimer]

They don't move at all like epitokes . . .

~Bruce