[Zapins]

LA is a strong flower reproducing plant so there is plenty of genetic variety out there. I think you are quite right in that most of the color is genetically predetermined. However, low nitrates, high light and high iron will definitely bring out the reds in any variety.

I find it a bit odd that the green LA has no variation of color at all, usually the top and bottom of the leaves are a different color.

 

[Zapins]

Purely out of interest can you take another picture of it close up?

 

[Zapins]

You know... Come to think of it I remember that at one point my LA also went completely green like yours. I can't remember the specifics of what happened, but I remember that it was stunted for a while and then I think I added potassium and it suddenly grew out extremely green with no color and became very bushy. It looked very much like yours does. I have pictures but I can't remember 100% if it was potassium... hmmm...

 

[Zapins]

I've got it! The difference between your tank and everyone elses is..... discus poop! It must have some special green properties that are absorbed by LA over a period of months!

It all makes sense now!