[Steven_Chong]

Let me suggest 2 stem plants for small tanks:

Micropea minima
Crassula helmsi

These are very small thin-leaved green stem plants. They may be able to give you the impression of bamboo, since it sounds to me like this is not meant to be iwagumi.

As of now, I'm not a big fan of Rotala sp. mini. I tend to think of it as in the same class of plants with tonninas that I think, "pretty, but just not useful for an over-all lay out."

That said, I invite anyone who thinks otherwise to prove me wrong with an effective use. R. mini isn't commonly available, but Tonninas appear in advanced hobbyist's collections world over. And yet, Tonninas fail to appear in any lay out in the top 60 or so in the ADA contest while Rotala rotundifolia will appear well into the top 20.