Anyone know what these are?

krystinaxlea

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Can anyone help me ID these white hair looking things? I've noticed it multiple in spots only on the liverock from what I can find. Any help/information would be greatly appreciated. Thank you!


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ISpeakForTheSeas

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As mentioned, hydroids:
Yeah, I haven't narrowed down the exact variety yet, but they're hydroids, most likely from the suborder Capitata - they might be an Asyncoryne species, but I need to do some more reading up on the families in the suborder to say for sure.
 

Reefkeepers Archive

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Kinda looks like digitate hydroids, harmless IMO though they can irritate corals such as zoas if they grow into them.


Though these may be different, they appear shorter. I had something similar growing on the (dead) branches of my Duncan, they disappeared after a month or two
 
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krystinaxlea

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Yeah, these are different; digitate hydroids are from the taxonomic family Zancleidae - same taxonomic suborder, Capitata, as these though.
Thank you for your answers i appreciate it. Do you think I should attempt to clean them off the rock? Or just leave it be
 

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Thank you for your answers i appreciate it. Do you think I should attempt to clean them off the rock? Or just leave it be
It's generally suggested to get rid of hydroids, as they (like many corals) have stings - if the species has a potent enough sting, it can cause problems for you and your tank inhabitants.

There are a few species (like at least some of the Zancleid species mentioned above) that seem potentially harmless/worth keeping, but many are problematic, so removal at this point is the safer option.
 
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krystinaxlea

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It's generally suggested to get rid of hydroids, as they (like many corals) have stings - if the species has a potent enough sting, it can cause problems for you and your tank inhabitants.

There are a few species (like at least some of the Zancleid species mentioned above) that seem potentially harmless/worth keeping, but many are problematic, so removal at this point is the safer option.
Thank you so much I appreciate all your help.
 

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