Unknown pest

BRS

reefing.on.reefer

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Can anyone tell me what this pest is, and if it is a threat to my reef. It’s a very small white/ or translucent oval shaped pest. I’m seeing them on my glass as well as coral and live rock.

3772F351-CC96-41BB-AE9C-2A2FCA865C8B.jpeg D5DA4ADA-0BAF-478A-8EE8-056DA9C01E25.jpeg
 

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Kdub Koral Guy

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Can anyone tell me what this pest is, and if it is a threat to my reef. It’s a very small white/ or translucent oval shaped pest. I’m seeing them on my glass as well as coral and live rock.

3772F351-CC96-41BB-AE9C-2A2FCA865C8B.jpeg D5DA4ADA-0BAF-478A-8EE8-056DA9C01E25.jpeg
I cant see your pests very well, but if they look like these white guys in my picture, they are Tunicates. It is a type of Sea Squirt and are not harmful. I have them on this plug of my Goni and a couple have spread to the back of my tank. Mine have been growing for a few months and I have left them alone for now.

Mystery Coral White Light.jpg
 
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R

reefing.on.reefer

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Not quite. Here I circled it. And a video.

A3F84EF1-EF80-4613-8108-B5C0DF61CB5E.jpeg 776B3004-697D-439F-B529-48A2EC8A56A8.jpeg
 

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Jeto2004

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Very hard to make out in you blue light! Have a look at this. I think it could be a pineapple sponge. Third on in the majors list!

 

vetteguy53081

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Image is very blue, but looks like one of two things:
is it . . . . . . . . .

limpet:

1589847358575.png
1589847373155.png


OR

Flatworm:

1589847421200.png
1589847438995.png
1589847450740.png
 
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vetteguy53081

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ahaaa. Thank you, thank you very much. Im positive it’s a flatworm. Now now my second question is how much of a threat are they?
Not a good one. Siphon and remove and keep an eye out for any more and the presence of eggs. Likely an acro eating version
 
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