Lunar cycles are tied directly to coral spawning events, even in home aquariums. They're also tied directly to THE GRUNION RUN!
I think you're thinking of Kelvin, as in color rating or temperature. The light coming off the moon has a Kelvin rating, but it's not a "cycle" of any sort.
My own question had a lot less to do with lunar gravitational effects than how lighting changes naturally throughout the 24 hour period.
he might be talking about the Calvin cycle. I remember something about it from science in high school a few years ago. off the top of my head I have no clue what it is, but *googles* . . .
Okay, I kinda remember It's basically how the plant 'eats'. During the 'light cycle', two products are made that are used in the Calvin Cycle; ATP and NADPH. They are both sources of high energy for the plant.
Step 1. a carbon molecule from CO2 enters the cycle and joins with a 5-carbon molecule that's floatin' around in there. So now you have O2 (oxygen) and a 6-carbon thingamabobber.
Step 2. ATP takes some of its energy and breaks up the 6-carbon molecule into two 3-carbon molecules. ATP turns to ADP. NADPH uses some of its energy too, and turns to NADP.
Step 3. A carbon atom falls off, and is used for G3P (will explain later).
(oh, and the 3+2 carbon molecule turned back into a 5-carbon one, and used some more ATP to change, so now we have more ADP)
G3P has 3 carbons, so it takes 3 cycles to make a G3P. Glucose (sugar [[FOOD]]) has 6 carbons, so it takes two G3P's to make a glucose molecule.
Now i dont know if that was
at all necessary to explain, but its nice to learn.