Cyanobacteria growing on clove coral

[airedwin]

I had cyanobacteria on the stems of my clove corals, I was able to blow it off but there seems to be some other red colored stuff stuck on it that doesn't blow or scrape off, is this cyano or something else? Should I be worried about my coral?

 

[SlugSnorter]

I had cyanobacteria on the stems of my clove corals, I was able to blow it off but there seems to be some other red colored stuff stuck on it that doesn't blow or scrape off, is this cyano or something else? Should I be worried about my coral?

give pic please. Params? tank age? flow?

 

[airedwin]

give pic please. Params? tank age? flow?

Testing Params now

 

[homer1475]

Looks to be coralline to me.

 

[airedwin]

Looks to be coralline to me.

Is that a problem for the coral?
Params are

Nitrate 5.7ppm
Calcium 376
Phosphate .13
Alk 7.5