Updated: 16 Sep 2012 (above)
My polygonum has finally emerged but the lower sumberged leaves have started to rot. hmmm...so it might no be suitable for aquarium?
Came across this interesting "weed" (polygonum) and added it to my background plants. I am giving it a try for the wild look and hope it can quickly grow half emerged from the tank to create a different tank scape..
.