What are these stem looking things?

[jtlmnop]

I purchased a small colony of blasto merletti that came on a chunk of LR.

I have glued over a few aiptasia that I have noticed, but just saw these stem/worm like things on the back side of the rock.

I haven’t noticed them moving, but they certainly look worm-esque. Some type of tube worm maybe? Feather duster?

Any ideas? TYIA

 

[Benjammin]

Photo using more white lite would help but it looks like a a feather duster. Make sure it’s not some form of Aiptasia.

 

[vetteguy53081]

Appears to be a tube worm which uses fan to capture food and not a duster. However, this is an educated best as picture is heavy in blue lighting and if you can, retake under white lighting.

 

[jtlmnop]

Here is a pic with the whites on.

Appears to be a tube worm which uses fan to capture food and not a duster. However, this is an educated best as picture is heavy in blue lighting and if you can, retake under white lighting.

 

[vetteguy53081]

Here is a pic with the whites on.

Tube worm. (at least on the left). They favor brine shrimp. To starve them and have it go away. . simply direct flow towards, not at it and it will not be able to acquire food.