Radion Spectrum Constant or Variable?

[atp0726]

Anyone having success with a schedule that keeps the spectrum/ kelvin temperature constant and only changes intensity? I have been running schedules that start at 20k and ramps up to 12k then back down and I an wondering if it would be better to only change the intensity and leave the spectrum at one kelvin temp like 20k. This is how a T5 or halide set up would operate and they don't vary their spectrum throughout the day like we are able to do with the Radion. In the ocean, depth is what controls the spectrum. My thinking is by us changing the spectrum on our lights daily it is like taking a piece of coral and raising it up and down in the ocean throughout the day.
Any results out there to back up this theory? I may give it a try just thought I would put this out there rather than re-creating the wheel here.

 

[erndog1001]

My first thought is this. As the lights come up from dim to bright. Isn't that in essence what they are doing all by themselves? Going slowly from one k-temp up to another.Holding that one for a time and then going the other way until dark.
And is depth the only factor that determines k-temp on a particular spot? Or does time of day and angle of the sun have something to do with it also?
You make a very interesting point.

 

[mikeatjac]

In the ocean the distance the sun has to penetrate changes with the height of the sun. At noon it is straight overhead so it has less water to penetrate. In the morning it is on the horizon and at that angle the sun has more water to penetrate. Therefore the tempeture of the light on the coral changes over the course of a day.

Now to your question, which is better a constant or variable light temp. I have seen no studies either way but since in nature it is variable that is the path I am following.