Worm with 2 tentacles?

SaltwaterGuruNeeded

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Found this 10 mins ago. There are a bunch of them. Seems like when the lights go out, they come out. Are they good or bad. Also, what do they eat and what is it? What do they do?
 
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Here it is!
 

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vetteguy53081

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Spionid worm and quite common hitchiker. The two threads known as palps are used to capture food. this worms is a member of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the littoral or neritic zones. Spionids have a single pair of flexible feeding tentacles with grooves, arising directly from the prostomium. They are harmless and eat detritus
 
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Spionid worm and quite common hitchiker. The two threads known as palps are used to capture food. this worms is a member of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the littoral or neritic zones. Spionids have a single pair of flexible feeding tentacles with grooves, arising directly from the prostomium. They are harmless and eat detritus
Thanks seems like you know what you are talking about!
 
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If just 2 tentacles, I’m thinking spionid worm… google image results for spionid and tell me if that’s what you’re looking at
Not entirely sure because I can't see the body of the worm. But there are only 2 tentacles and they look clear. The head looks clearish too.
 

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I've never seen one in substrate. You are looking at just it's antennae, the actual body of the worm is much larger. I'd scoop out a big area underneath the tentacles and get a good look at this guy, then I'd get rid of it. I'm not exactly sure of the method, but they will live in your coral and burrow around creating tube like openings.
 
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I've never seen one in substrate. You are looking at just it's antennae, the actual body of the worm is much larger. I'd scoop out a big area underneath the tentacles and get a good look at this guy, then I'd get rid of it. I'm not exactly sure of the method, but they will live in your coral and burrow around creating tube like openings.
Here's a better picture of another one.
 

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vetteguy53081

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Not entirely sure because I can't see the body of the worm. But there are only 2 tentacles and they look clear. The head looks clearish too.
the worm itself is semi clear and lives in substrate or with coral such as zoa.

1625191091089.png
1625191117037.png
 

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It won't really harm the corals, I have them in several encrusting coral frags. I don't like the look of worm tubes sticking out of my cyphastrea though. I'd get rid of them if I could.
 

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Will it harm the corals? And here is a better pic.
No harm. There is an opening associated with them and you can simply place a dab of gel superglue from dollar store over the opening and theyre done.
 

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In my experience, they simply build a new tube somewhere else. Why would superglue stop a worm that burrows through coral after all.
 

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