[APD] Red Pigment-K spectrum correlation experiment

["Phil Edwards" <biotypical at hotmail_com>]

Hi folks,

I'm gathering data on the correlation between red pigment in plants and the 
light spectrum they're provided in our aquariums.

I remember seeing the question many times "How do I get my plants to be more 
red?" The other day in class my prof. said something that clicked and got me 
thinking.

My hypothesis is this: Since a plant produces red pigments to capture blue 
light, then a plant grown under a higher K rating bulb (more blue light) 
should be more red than if it were grown under a lower K bulb.

Please make mention of a general percentage of how red your plants are.  For 
example, a stand of Ludwigia repens may only have a little red at 5%, while 
100% would be completely and vividly red.  Right now I'm just trying to get 
anecdotal information from hobbyists since the environments in each 
individual aquarium is different than another this experiment isn't going to 
take into account variances in nutrition.  All I'm interested in is spectrum 
rating.  If you want to send NO3, CO2, and other measurements along for the 
ride I'll be happy to track those too for fun.

Thanks,

Phil Edwards
Charlotte, NC

PS: You did enter your tank in the AGA this year, didn't you?  :)

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