White slime on my Acropora Nana

[IgorDI]

This white slime appeared on some of my Acropora Nana colonies, Can you please tell me what's that?

I've looked on it in microscope and noticed that there are some microorganisms that are looking like kind of infusoria.

Thanks!

 

[Steven Pro]

Corals problems are not really my specialty, but it looks somewhat like polyp extrusion. Try searching here for other threads with images of polyp extrusion for comparison.

 

[IgorDI]

Steven,

Steven,

Thanks for your help!