What worm is this?

Peppz

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I dont know if this is a worm or a spider star fish. I have not bought any star fish nor have I added anything to the tank in a very long time! I assumed they are worms but I dont know what type and if they are good or bad

17643969331361980831438941781997.jpg 20251129_171031.jpg 176439695486633417411182588610.jpg
 
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Peppz

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I suspect bristle worms or fire worms but unsure and dont know if I should try eliminate, I've never seen them before but assumed I had some
 

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As far as if eliminating them it all comes down to identifying if it’s a bristle worm they are a clean up crew but a fire worm would need to be eliminated you can also look for any negative impacts in the tank
 
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Micro-brittle star arms. They hunt that way.
I thought that and hoped it was to be honest I have never bought one but then I saw it in another spot at the top on the same rock I haven't seen it before are they good at hiding?
 
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As far as if eliminating them it all comes down to identifying if it’s a bristle worm they are a clean up crew but a fire worm would need to be eliminated you can also look for any negative impacts in the tank
Tbh never seen them i know if have bristle worms i have seen them at night and they didnt look like this, I thought maybe a different breed?
 
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Tbh never seen them i know if have bristle worms i have seen them at night and they didnt look like this, I thought maybe a different breed?
Not really anything negative other than the only corals that survive are my mushrooms my leather Coral and my firetip anenome(4) that dont move
 

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Those look like micro brittle star arms and mostly all you will see of them is the arms sticking out as the catch what goes by. They are hitchhikers and beneficial filler feeders.
 

nbuckridge28

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I thought that and hoped it was to be honest I have never bought one but then I saw it in another spot at the top on the same rock I haven't seen it before are they good at hiding?
They are pretty great at hitchhiking and definetly great hiders I have one that came as a hitchhiker in my smaller reef and have only seen it twice
 

Freenow54

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I dont know if this is a worm or a spider star fish. I have not bought any star fish nor have I added anything to the tank in a very long time! I assumed they are worms but I dont know what type and if they are good or bad

17643969331361980831438941781997.jpg
10d7c7ed-2a09-4a27-9ee8-70f67936e973.jpg
20251129_171031.jpg 176439695486633417411182588610.jpg
Hard to tell by your exposure light and too far away you need to get a better picture you already have the info. Mine are bristle worms , and I like them never harmed anything but will eat dead things . These are bristle worms in Paul Bs trap. Second pic are mine
1000002211.jpg
 

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