ID please the big mistery

[Garia666]

Hi my LFS has something in his tanks thats keeps everyone baffled.
If you look at it it doesnt move, but for some reason keeps expanding.
I will try and illustrate it with a couple of photos since a picture tells more then a thousand words
on the bottom are two pictures from a electronic microscope.

Please anyone who knows what it is.
And if there is anything to do to counter it?
it looks a bit like coral eggs. could it be?

 

[Kodi01]

I'm sorry I don't know what it is, but the fact that you included SEM pictures is incredible. [emoji1303]

 

[Garia666]

I'm sorry I don't know what it is, but the fact that you included SEM pictures is incredible. [emoji1303]

Thanks i recieved a couple of better pictures. I realy hope some marine biologist or any other person can help me in the correct direction

 

[Garia666]

Bump

 

[Salty1962]

Sponge? With the honeycomb structure, it looks like a sponge of some sort.

 

[Garia666]

i realy dont know. i am hoping someone will know for sure.. but it seems it wont happen.. if this site doesnt know.. no one will.