What is considered as a high light? Does color temperature playing a role with color of the plant?
Thank you for the input.
That's a question that has no conclusive answer. In my opinion, high light is between 80 & 110 PAR at the substrate (Above 110 is extremely high light). Others may feel differently.
And in my opinion, light drives color. Take the same plant under 50 PAR and 90 PAR, and there will be a world of difference in color. I documented that a few times in my journal in my own tank.
As to color temperature, in my experience it does make a difference. Dennis Wong does a nice job explaining this at his new web site. And I saw it in my own tank when I experimented with heavily colored bulbs.
And I noticed above you keep referencing lowering your Nitrates. What is your Nitrate level, and why do you want to lower it?
I know some plants will show great color when starved for N. But not on a long term basis. It's a distress signal. I've never seen a tank be successful in the long term limiting N and starving plants. The healthiest most colorful tanks I have seen have plenty of N and healthy (not distressed) plants.
As always, just my opinion from my own personal experience.
And by the way, I really like the tank, coming along great.