Re: [AGA Member] Red Pigment-K spectrum experiment

[jusfourn@shaw.ca]

Phil,

As far as the quantity of the red plants in my aquarium, they are as red as I have ever seen them be in the pics common through out the web. Most of the tops of my stem plants are also red. This includes L. spec "Cuba", H. corymbosa "Compact" ect. 

Lighting is 4x64W 6700K and 2x65W 9325K compact lamps over a 75G. The P04 is around 1.ppm, the N03 around 10-13ppm added C02 of course.

Justin Fournier

----- Original Message -----
From: Phil Edwards <biotypical@hotmail.com>
Date: Thursday, September 18, 2003 3:00 pm
Subject: [AGA Member] Red Pigment-K spectrum experiment

> 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 how red your plants are.  A general 
> percentage guess 
> is good enough.  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
> 
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