Is this Cyano?

Tman007 · Apr 7, 2023

I have some unknown maroon-colored blobs on my pavona coral, which is near the top of my tank (see photo). Could this be Cyano?

(I've been fortunate to never have had Cyano in my 2-year-old tank, and most pics I've seen from others show Cyano at the lower levels.)

Any expert feedback would be appreciated!

blaxsun · Apr 7, 2023

Not an expert, but I don't think it's cyano (not sure what it is, though).

Rick's Reviews · Apr 7, 2023

Not an expert but possibly bubble algae
These grow in various colours, shapes and forms

Tman007 · Apr 8, 2023

Thanks guys for the initial feedback. The strange thing is it's only growing on the tips of the pavona coral, which has been in my tank for over a year.

Auto-pilot · Apr 8, 2023

Tman007 said:
I have some unknown maroon-colored blobs on my pavona coral, which is near the top of my tank (see photo). Could this be Cyano?

(I've been fortunate to never have had Cyano in my 2-year-old tank, and most pics I've seen from others show Cyano at the lower levels.)

Any expert feedback would be appreciated!

Actually it kinda does look like cyano, it's not bubble algae. To bad you don't have a microscope, then it would be an easy identification