OK, I really am struggling to pick out a final plant, the centerpiece. I need one for the rear center of my tank. It must tolerate warm water and pretty good current. It needs to grow high and flow to the side with the water flow, but I also want it to have a little bulk to it. In this tank, my foreground is dwarf hairgrass, backed by 5 medium lava rocks with riccia on them and that is backed by driftwood of low height, stretched throughout the middle of the tank. The background had crypts, an amazon sword, and one whole corner of rotala walachii. This will be a planted discus tank...