Frog Spawn pest ID microscope pic

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Tank is 180 gallon with 30 gallon custom sump. Today I was super gluing the tubes of some vermiliad snails on my frog spawn that has around 20 polyps. I’ve been notice a slow decline in this coral over the last few months so I though maybe the snails where the reason. At the bottom of on of one the lower heads I noticed what appeared to be a white egg mass. I figured the only way to get them out was to cut off the head. I got the microscope out and sampled some of the mass and found what appears to be flat worms. I’m sure there are many more of what ever this is but I need a positive ID before I take any action. Before anyone suggest a six line my six line wrasse is doing noting to help.
The orginisims are moving slowly, what you think?
Thanks!
 
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They're new to me ... @KJ, have you seen anything like this one?

~Bruce
I found at least 2 other heads that had these white masses on the under side. Took another picture, low magnification with a Din 4 lens. The cells in the outer bands of each organism are slowly moving so it is a living organism.

IMG_4886.jpg
 
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I’ve spent several hours researching this, don’t think it’s flat worms. I have not seen a single one. The white masses are on the bottom of the heads below the polyps, usually 1/8 to 3/16” long and stringy almost like nidibranch eggs. I have not seen any pest on the corals but something is taking them down on polyp at a time.
 

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Could it be bacterial by any chance? Hope you find an ID. Maybe a dip will help the coral turn around. Do you have any pics of the coral with mass attached without the microscope?
 
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Bebow

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Could it be bacterial by any chance? Hope you find an ID. Maybe a dip will help the coral turn around. Do you have any pics of the coral with mass attached without the microscope?
No pictures yet, tried but the sacs are hard to photograph being on the underside of the heads. There’s probably 4 or 5 heads that have them. The coral is epoxied to a large rock. I’ll probably break it loose in the next few days and dip it. I’ve had this coral for around 5 years, it’s really gone down hill lately.
 
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Bebow

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Finally got a picture of the mystery sacs on my frogspawn with my Ipad. It takes better pictures than my Nikon DSLR!
IMG_0438.JPG
What the heck is this??
 

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Found a few pictures of Euphyllia Eating Flatworms, they get quite big apparently.
1023558b259abe2925854144a88e00a9.jpg
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Your microscopic pictures look bilaterian and eggs suggest a form of Platyhelminthe.
 
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Bebow

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Almost looks like mesenterial fillaments. I'm stumped
Maybe a collapsed tentacle from the polyp?? It is somewhat fiberious.
Found a few pictures of Euphyllia Eating Flatworms, they get quite big apparently.
1023558b259abe2925854144a88e00a9.jpg
36fc4de9f053c666af6a727a5d3b12b7.jpg
d8c1a83f3c724315b67bb039c6c500de.jpg

Your microscopic pictures look bilaterian and eggs suggest a form of Platyhelminthe.

Yep, I would have no problem seeing them. I read one article that suggested somespecies of flatworm don’t actually feed on the host but they steal all their food and take the mucus on the feeding the tentacles causing the host to starve.
Do stomatella snails lay eggs?
 
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I may have solved part of this mystery. I witnessed this stringy white substance coming out of the corals mouth. How it gets to the edge of the polyp I’m not sure. Picture is below. Now I wonder is the polyp dying? Why? Water is good with 8.4 Alk, Ca 400, Mag 1220, salinity is a bit low at 1.023, working on slowly raising that, Ph 8.27.
 

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Not always, sometimes it's a defense mechanism but I'm wondering if your chemistry is causing it? Hoping it pulls through
 

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