[quote author=bluenassarius link=topic=5819.msg72906#msg72906 date=1231196186]
thats botryocladia, its often mistaken or labeled as caulerpa.
http://images.google.com/images?q=botryocladia&ie=utf-8&oe=utf-8&rls=org.mozilla:en-US

fficial&client=firefox-a&um=1&sa=N&tab=wi
[/quote]
I always thought botryocladia had much larger "sacks" and more of a pearshape to them as opposed to round. I've seen what I understand to be botryocladia with "sacks" almost an inch long. Where as what I understand to be grape calerpa has "sacks" that remain very small. I guess I need to research this more to get clarification.