mysterious light pink stuff

[Mine.Mine.]

Hey guys, I've recently discovered this stuff on the bottom of a piece of rock topped with zoas. I have noticed it spreading, And am also seeing my zoas deminish... so what is this light pink growth and is it the cause of my zoa problem?

 

[Mine.Mine.]

And of course, the photo would help! My bad. And it looks a little more white than pink in the photo.

 

[Crystal A]

Coralline algae good stuff.

 

[Mine.Mine.]

O I meant the stuff covering the coraline. If you look at the middle of the photo, then to the left a tiny bit there Is this:

 

[Crystal A]

It's kinda hard to tell cause of the lighting. Could it be Cyanobacteria. Google it and see if it looks simalar.