Black spots

[Isiah1820]

I have these black spots that are popping up on the a few rocks. It started as one little spot and spread so it has to be some type of algae maybe. It is hard to scarp off and black or really dark brown in color. I will point out that it’s on a lot of the rocks that has a lot of coraline algae also if that info is even relevant.

 

[Isiah1820]

And I just got my GHA problem to point where it’s almost all gone lol.

 

[Isiah1820]

Bump

 

[findingsimple]

Seeing the same - what happened for you?

 

[Isiah1820]

It’s another thread that I found that may have answers for you. I can send the link or tag you.