Fuzzy coraline algae?

[Cr1ck37]

Need some help here, what is this fuzzy / hairy stuff on what I assume is on coraline (was already there when purchased from lfs)

 

[Dana42078]

Going to have to zoom in a lil more. kinda hard to tell. Honestly doesnt look harmful to me from what ive read or seen before. Doesnt look uniformed enough to be a feather duster. idk...i wouldnt be worried tho. The rock looks nice,

 

[AmberSunrise]

Yes looks like the beginning of coralline mine always starts off fuzzy then seems to harden right before my urchin eats it haha

 

[Cr1ck37]

Thanks! It's a new tank so hopefully it's what Amber is saying. Didn't know that coraline would get fuzzy, good sign I hope!