Would like an ID on these sprouts

[wowreefer]

I have these growing out of my live rock. The live rock was purchased from Liveaquaria about 7 months ago. These things grow to about 2 inches long and die. Not sure if they die because they can't support themselves physically and bend/break at the attechment point. The attachment point is very small relative to the diameter of the green sprouts.
Or if the my "bull in a china closet" lawnmower blenny (murky) beats them up.
Any input would be welcome.

http://i897.photobucket.com/albums/ac179/wowreefer/beansprouts.jpg

[Mmckibben]

i dont know what they are called, but no need to worry. I have tons of them, and they cause no problems. They normally come and go at random.

[AaronM]

Spindle weed?
http://www.masa.asn.au/masawiki/index.php/Hitchhikers_Guide_to_the_Reef_Tank
Scroll about a 3rd of the way down.

[TellyFish]

It's Neomeris sp., a common and reef-safe algae. Enjoy them!

[wowreefer]

looks like neomeris it is..

Thanks all

[Nanook]

Sucks up calcium too.

[TellyFish]

They thrive and take over in some tanks, others they just sit, others they just die out unexplained. I suppose it depends on the conditions, nutrients, etc. in your tank.

[Nanook]

We have a guy here in Saint Louis that had them take over his tank for a while.

[JSeymour]

A couple years ago I notice a couple of these growing on a rock and placed it in my sump for protection from my fish. Turns out they were halimeda. Now I have tons of it. Loves it's calcium! Either type though is a nice decorative macro. They spread easily, but they are easy enough to remove new sprouts. Plus a couple of the stores near me, give me some good credit for it.

[reefWW96]

they are deffintely a macro algae. They die out to reproduce in the wild in which they release their spores, but in aquariums most algae spores are skimmed out of the water.