No clue what this thing is

ISpeakForTheSeas

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@ISpeakForTheSeas I heard spoinid worms sting corals, is that true for parchment worms as well?
Spionids can't sting corals, but some species (Coral-boring Spionid Worms) will bore through them and live inside them; in small numbers, this isn't a big issue, but it our tanks these species can reproduce and grow to huge populations, and these huge populations can destroy the corals from the inside out.

For Chaetopterid worms, since they live in sand tubes and not in rock, they wouldn't bore through the corals, so they're not going to cause these sorts of issues.
 
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Spionids can't sting corals, but some species (Coral-boring Spionid Worms) will bore through them and live inside them; in small numbers, this isn't a big issue, but it our tanks these species can reproduce and grow to huge populations, and these huge populations can destroy the corals from the inside out.

For Chaetopterid worms, since they live in sand tubes and not in rock, they wouldn't bore through the corals, so they're not going to cause these sorts of issues.
Okay, here’s a little update too he built out his tube with my sand now he’s poking out of the rock. I’ve also spotted three more of these around the tank, but all the others are in the sand.
image.jpg
 

ISpeakForTheSeas

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Okay, here’s a little update too he built out his tube with my sand now he’s poking out of the rock. I’ve also spotted three more of these around the tank, but all the others are in the sand.
image.jpg
Interesting - I'd keep an eye on them and probably start removing if it looks like you're getting too many of them popping up.
 

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