Start of coralline?

[Fishbro]

So my tank has been set up for about 2 1/2 months and I have about 11 frags that are doing really well. In the past two days these pink spots have been showing up on my power head and I’m just wondering if this is coralline or something else? Sorry for the not clear water I took these just now at feeding time.

 

[Big C]

Certainly looks like it.

 

[Hydrored]

Looks like it to me, you’re doing something right for a tank that young

 

[35ppt]

Yep

 

[Fishbro]

Ok so I also started with some live rock from my LFS but it didn’t have any coralline and now it’s been developing some spots on it and the main rock is turning greenish and it doesn’t scrape off is that also the start of coralline?

 

[Hydrored]

Looks like it to me