Beginning of Coralline Algae?

[tmcreynolds]

Is this the start of coralline algae? I am in the middle of a dino and cyano battle and noticed these green circles have started popping up on my rock.

 

[Sophie"s mom]

IT could be, but hard to tell. Do you have anything in your tank that already has coralline on it? A rock? or snail shell? Did you use the bottled stuff? I ask because coralline does not just eventually appear in a tank, it MUST be introduced into the tank on something.

 

[tmcreynolds]

I do but its purple. Most of my snail shells and frags have it on them and when i first started the tank i scraped some of the shells to try and introduce it. I just want to make sure it is hopefully something positive to offset all the other stuff.