Originally Posted by Boredomb
I can not be absolutely sure it was the "true" Pygmy chain sword. As I did get it from Petco but from pics I have seen it look like it. I may try getting this plant from online sometime in the future. As for now I am to the point that I realize this is just one plant that won't grow for me.
Now I'm almost positive that the plant was actually microsword, or Lilaeopsis brasiliensis
[this is the most common species, there are some others]. Grown emersed, as most aquarium plants are, they are nearly identical in leaf structure. In fact, in another thread, i identified the plant in a photo as Hellanthium tenellum until zof corrected me and i took a second look and agreed with him.
This plant is much more difficult; mine [which were labelled "Tenellus sword" even] yellowed and melted within a couple weeks in 2 or 3 different tanks. I kept one "root" in the 70g and left it alone, and it has now after several months spread a bit, but it is feeble.
If you were in Canada I would mail you a bucket of Hellanthium tenellum, I'm tossing out plantlets every week. And I'm not kidding. If you can find it in a reliable store or online, or from another member in your area, I would try it.