Grapevine??

I have some in one of my tanks I weighted it down to hold it under. after a few weeks it got some strange white algae which I manually removed. It went away after a few months.
Grapewood will rot eventually though-larger pieces shouldn't be a problem for a long time.
I wouldn't purposely choose this wood though for those reasons. Some kind of rootwood is my preferred choice.

This should cover everything.

This topic comes up every now and then...

http://www.plantedtank.net/forums/general-planted-tank-discussion/24701-grapevine-planted-tanks.html

I feel like I've been here a while now, that was one of them first topics i started:eek5:

-Andrew

Fish Newb,
Do you have any pics of your tanks with the vine in it?

Curt