Green spots on live rock

[Havoks]

Hi guys, I started my reef tank around 3 months ago. It's a 55 gal tank with a clown, blue damsel, diamond goby, skunk shrimp and a couple of small coral frags. My water parameters, as of yesterday are Ph 8.4, SG 1.025, Nitrates 0, Nitrites 0 and ammonia 0. Today I noticed some green spots on one of my live rocks. It's the first time I've seen them I don't know if they are good or something I need to fix. Any insight would be appreciated.

Thanks

 

[Tahoe61]

Hard to tell from the image but the beginnings of purple coralline is often a green fluoresent algae.

 

[Havoks]

Maybe you can see it better on this one.

 

[Wiz]

Don't see anything abnormal. Probably coraline.

 

[Havoks]

Thanks for your input.

 

[EW_Fish]

Don't see anything abnormal. Probably coraline.

++1

 

[saltyphish]

If you can't rub it off with your fingers it's the beginning of coralline. Here is what mine looked like