What are these stem looking things?

jtlmnop

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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

377240FE-67F4-4A3E-8DA3-2D4A29A62CFA.jpeg
 
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vetteguy53081

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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.
 
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jtlmnop

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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.
 

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vetteguy53081

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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.
 
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