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

[Kate Breimayer <kate@munat.com>]

The standard screw in compact flourescent 13 watt bulbs sold at Home 
Depot -the ones with the ceramic base and twisted tubing instead of a 
bulb shape-work really well at bringing out red pigment. I would 
recommend them for spot lighting particular plants if you had the 
ability to set up a custom hood, or what I do is put them in a clamp 
light without the clamp and lay it on the glass top. You want to use a 
clamp light with the vented aluminum dome for this, and also the bulbs 
should be the type made for enclosed fixtures. Works excellent for me, I 
only discovered this because I was being cheap and putting them over a 
growout tank where I had stuffed a bunch of trimmings off the main 
tanks' plants... the grow out tank is now the nicest one I have :)
Kate B
Oly WA

Phil Edwards wrote:

> 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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