Can someone help identify this worm under the microscope?

[AVEN]

Hi everyone,
I recently found a very small worm in my reef tank and took some microscope pictures of its head. There are many thin tentacle-like appendages on it, much more than 5, which makes me think it’s not a Eunice worm, although at first I was afraid of that.

It is a 2 cm long worm, I’m assuming it might be a spionid polychaete or something along those lines, but I could sure use some expert confirmation or denial.

Thank you for your help!

 

[Rocks reef]

Do you have a picture of the entire worm?

 

[AVEN]

Do you have a picture of the entire worm?

I don't have a complete picture of the body. But from what I saw under the microscope, it was very similar to a fireworm.

 

[VintageReefer]

Can you take a pic of the worm in white light ?

 

[AVEN]

Can you take a pic of the worm in white light ?

I can't anymore. I gave the worm to a friend of mine who has a dedicated tank.

 

[Freenow54]

I can't anymore. I gave the worm to a friend of mine who has a dedicated tank.

Dedicated Alien Tank

 

[AVEN]

I can't anymore. I gave the worm to a friend of mine who has a dedicated tank.

Dedicated Alien Tank

Exactly a former refugium (dsb, some rocks, and macroalgae) where he has been having fun this way for years.

 

[FishLvR]

Arrow worm.

 

[AVEN]

Arrow worm.

I'm not sure it's this