What is this
 

No pictures.... I may have to try and photo this however maybe you can help me identify it without a pic...

this is like a vine growing on one of my rocks... the vine is white to clear in color and it has a whole wach of little white clear balls that look sort of like tiny grapes...?

Sounds like caulerpa. Need a pic to be sure.

grapes like this?
http://www.melevsreef.com/id/caulerpa_racemosa.html
If they have turned white, they have gone sexual and should be thrown out. Otherwise, all the nutrients they used to grow, will be released into your water.

nope...

Maybe / however with this the vine is almost white ... no green and the bulblets are clear to white / I will try and get a picture ...

If it is caulerpa you are not alone. Happens all the time,turning white. Depends on how much you have, whether it will cloud your water

http://www.thereeftank.com/forums/f6...mosa-3173.html