please help me id this algae

[zenya]

Hi guys/gals,

I have some type of algae that appear on a small rock and I'm not quite sure what it is. It sort of looks like a Halimeda but I never planted it there and not sure where it came from:o
So I ask you to help me with id on this.

Here's a pic...

[billsreef]

Yes it does indeed apear to be halimeda ;) Most likely was present as a spore on some LR.

[zenya]

http://smilies.sofrayt.com/%5E/b0/pray.gif

Thanks Bill! It makes me a very happy man( I was getting ready to yank it out),I guess I can live it alone and enjoy some greenery:D