Unknown Plant.. what could it be?

[Susanne]

I've never had live plants before as my experience with live plants (out of water plants) have normally died.

My tank has wisteria which is starting to root. But we bought this other plant and I have no idea what it is.

It is a tall stem which almost reaches the top of the water. It has leaves (long and slender) which come off the stem. The leaves turn pink once they get bigger. The leaves are fairly sparse but it's a nice plant.

Any ideas what it could be?

I added hornwart to my guppy tank and I let it just float. I was told it's hard to kill a plant like that. The guppies seem to like that.

 

[Bob Ashcraft]

Sounds like, H polysperma. Once it's established, it'll grow like a weed.