A nice size bunch of two types of rotala rotundafolia

"Blood Red Singapore" variety. In my experience, this is the reddest of the rotala rotundifolias. The second image is this plant in a no co2, no filter tank. It says fairly red even without co2. (first image is co2 injected tank). (redder than H'ra, and slightly bigger leaves)

"OJ - Orange Juice. A lime green to bright peachy orange rotala. 

Both of these respond to nitrate limitation for increased color. So if you want more red and orange color - don't dose nitrates. I don't limit nitrates, so these are colors you get without nitrate limitation.