[tsunami]

I went ahead and scanned an image out of my ADA contest magazine. I think it is something similar to what you are trying to do.

Glosso or Hemianthus callitrichoides are equally viable for the foreground. It's just that you're going to have to trim both back into the foreground. They both send out invasive stems into surrounding plantings.

I recommend not placing this triangle in the center. Rather, placing it just off center would be best.

Carlos

 

[tsunami]

In this aquascape, the owner carefully shaped the Rotala rotundifolia 'Green' into two mounds on either side. To cover up the lower stems and add midground height, he used two pieces of driftwood covered in java moss. These pieces are placed in such a way that they create a V. The Glosso was then used to fill in the foreground. The scanty, short Vallisneria at the focal point adds depth to this layout...

I don't feel that this particular aquascape really needs any red plants as the very strong focal point of negative space is more subtly balanced by the triangle of dark negative space right under the piece of driftwood on the left side.

Use of red plants? That is a really broad topic --too much for the scope of this thread. :?

Carlos

 

[tsunami]

I mentioned that in this particular layout, wide swaths of red plants would be distracting.

If I were forced to place red plants in that photo, I would place a grouping of Ludwigia arcuata in the extreme upper left hand corner.

Do your own layout first and decide from there. Placement of plants or species of plants aren't written in stone. You can always change them if you do not like the current position. That is how you learn.

Hope this helps,

Carlos