Hi Tom,
I have some of this in my tank as well. It is just now starting to grow it's submersed leaves. I did have a question though,how do you get this stuff to spread?Do you just take cuttings off and plant them?
How deep do these root? I ask because I am still thinking of trying a groundcovering plant with my clown loaches, and I figure its best to get a stong deep rooted ground convering plant, to make it less likely the clowns will stir them up.
I have only had mine a short time.I bought it from the lfs and it had been grown emersed. It was in a 2 in pot that they use. Anyway I took it out of the pot and the main root was about 3 in long twisted around the inside of the pot. A little root bound I guess The roots will go very deep and get very big given time.