I like teh elatine tiandra too. I just got some of it and planted it. All but 2 little plants melted. Those are growing. Hopefully I'll be able to get a nice stand of it!I do dose Iron, I just have to give them time. I don't know about the aromatica, I'm sure they will turn nice and red when I get my new light.
And that plant is elatine tiandra, I absolutely love the look of it.