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Andrewkg

Experienced Reefer
Noticed this in my sump the other day on a piece of live rock, anyone seen this before? If you watch the video you’ll see it retracts very quickly when nudged.


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Andrewkg

Experienced Reefer
Never seen it move that quickly, If you shine a light it turns towards it. Also seems to change the direction the tentacles are facing
 

CristianBells

New Reefer
Noticed this in my sump the other day on a piece of live rock, anyone seen this before? If you watch the video you’ll see it retracts very quickly when nudged.


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It sounds like you might have encountered a species of bristleworm or another type of marine creature that retracts quickly when disturbed. These creatures are often harmless but can be a bit startling to spot unexpectedly in your tank!
 

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