What is this green stuff growing on my rocks?

[timsedwards]

Hi Guys,
What are the green plant like things growing out of my live rock? They came in on it when I bought it 9 months ago, but the past month or so they are really growing fast...what are they and are they good? Should I trim them if necessary?
Thanks!
Tim.

 

[bdhough]

Looks like a macro algae. Which kind i dunno. Somebody does.

 

[nm reef]

It does look like some sort of macro algae. Does it have sort of fern looking branchs? From the pic it looks like you could possibly have bryopsis algae...which can be a major problem. I'd suggest a search for pics& info just to make sure thats not what you have.
If it is some sort of caulpera or other type macro then either let the fish trim it or manually remove it frequently to keep it under control. Most of the macros can grow rapidly and have the potential to over take a healthy system.

 

[timsedwards]

Hi Guys thanks for your responses,
Nope its definately not bryopsis, had a look a look at some pics.
Yes the hippo tang does seem like the odd nibble of it here and there!
Ill see how the tang likes it, otherwise ill start cutting back!
Thanks!
Tim.

 

[timsedwards]

bump for Melody...
Tim.