ID please
 

Can anyone id this plant its seems to be growing really well but it does not get roots It gos a little brown on the bottom. of the plant so I just break it of and replant it. Thanks

Wisteria perhaps?

Pretty sure it is not wisteria. It reminds me somewhat of what my myriophyllum mattogrossense looks like. I tried having that plant in the substrate which did not work to well for me. I have some floating in my 10 gallon which has been doing really well.

It looks like Didiplis diandra, commonly called Water hedge. Native to Eastern NA. Kasselmann says it is a demanding, sensitive, light-requiring plant. Another source with similar data is here:
http://www.aquaticplantcentral.com/f...ails.php?id=41
One of the photos from this site is attached below.

You can cut the stems and replant the upper portions, spread them out to allow as much light as possible to reach them. But sounds like it is not going to do well. With the exception of Pennywort, I don't bother with stem plants for this reason, most need more light (and then CO2 and nutrients to balance) than I am prepared to supply.

Byron.

Thanks I found it its Mayaca Fluviatilis or Stream Bogwood but thanks for your help:-)

Yes, that is a closer match to the photo.