LED color temperatures

[jrnannery]

Can anyone here speak conclusively to the differnt colors of LEDs having any effect whatsoever on life in your tank? I speak of course of lamps other than white or blue. Red, cyan, green, orange, violet, and even UV.

[jroescher]

There's a really long thread on Reef Central about the Chinese LEDS with some discussion about each spectrums effect.

http://www.reefcentral.com/forums/sh....php?t=2211981

Somewhere in there is a graphic that shows which spectrums have an effect.

[Zack]

I run red, cyan, UV, and purple on my LED setup, I can't say conclusively any growth etc.. due to the short period of using them, but my oh my, the colors are unreal.

[jrnannery]

Ok, what do you THINK that the "odd" colors do for you (ie, red, cyan, purple)?

[allan]

JR,

I have a magenta led strips on my middle LED unit from Mike's old set up.

Aside from my belief that this is a superior unit over the SOLs, the colors of the coral beneath this unit are very impressive.

I can't capture it on the phone, but I have a stuber frag that looks really healthy and the color is very rich, compared to the light color that I get on the same coral under the AI with just whites and the two blues.

I don't know about growth, and I probably won't ever know, but I'm pretty happy for that red spectrum.


Sent from my iPhone using Tapatalk

[jcnkt_ellis]

The other colors are needed not just for asthetics. To borrow from the internet:

Important
Definitions as it applies PAR in plants and zooanthellic algae: See the
graph to the left as it corresponds to each of these definitions.

*A:
Phototropic response; having a tendency to move in response to light.
Basically this is the Chlorophyll containing plant or algae "moving" to respond
to a positive light source to begin the process of photosynthesis (initial
growth of plants, zooxanthellae, etc.). This is found in the 420-500nm "blue"
spectrum.

*B: Photosynthetic response; the process which begins
when energy from light is absorbed by proteins called photosynthetic reaction
centers that contain chlorophylls.

*C: Chlorophyll synthesis is
the chemical reactions and pathways by the plant hormone cytokinin soon after
exposure to the correct Nanometers wave length (about 670 NM) of light resulting
in the formation of chlorophyll, resulting in continued growth of a plant,
algae, zooxanthellae and the ability to "feed" & propagate, and without this
aspect PAR (670 NM light energy), zooxanthellae and plants cannot properly
"feed" propagate. The results of the lack of this high PAR "spike" would be
stunted freshwater plant growth, and eventually poor coral health in reef tanks.
This lack of near-red light over 630nm is common to many so-called aquarium
lights.

[Zack]

Ok, what do you THINK that the "odd" colors do for you (ie, red, cyan, purple)?

Well, scientifically once again I'm not sure, since A, I don't have certain growth rates recorded under MH, B/W leds, and this multi color unit but like I said, I have seen a great increase in color with these leds.. it's almost unreal how beautiful some of my corals look and the color temp I run mine at makes my royal gramma look amazing. I've seen a huge increase in the greens and reds in my tank. I have three different blue zoas and unfortunately all but one (tubbs) seem to be somewhat washed out due to the colors. Pinks stand out really well also.