[AaronT]

Hi Juan, Sorry I missed this post before. That is without a doubt an Ammannia species. http://www.aquaticplantcentral.com/...tails.php?id=118&category=genus&spec=Ammannia

It might be senegalensis though. I think gracillis is more red than organge in color.

 

[AaronT]

That's a really nice tank you have there Juan. Its' very colorful and vibrant.