Can anyone ID this Freshwater tank growth?

[Sherryp608]

Freshwater tank with some kind of lava rock.
White Growth on glass and fuzzy growth on rock,
Looks like 2 different types of zoanthids. Sorry about the quality of the picture.
I know this is more of a salt water reef community. but I have never anythin like this in freshwater.
Thanks!!!

 

[jasonj90]

is not a zoanthid at all... looks like some sort of algae. thats the best i can tell from that pic.

TO REEF CENTRAL!!!

 

[Sherryp608]

well, I have searched for types of algae,, couldn't find anything that looks similar in the algae family, to me it looks Hydrozoan.
Or something like that. I figure the lava rock might have had something in it, Its a friends tank so I don't have any better pictures yet. I know this is a reef community forum but I figured someone might point me in the right direction to figure this out.
Thanks for the reply : )