Red and green LEDS

[superdragon]

Are red and green leds harmful or even not necessary in full spectrum LED units, (ie Ecotech, AI, etc.) for sps health, growth, color?

thanks

 

[xanthurum]

Short answer, yes. At least that's what I was told by Sanjay Joshi and he knows a thing or 2 about the subject.

 

[Wazzel]

I suspect they provide some useful light. Both penetrate further and most of our corals come from shallower water depths than people realize. I run one at the same percent as the blues. Considering their are fewer less powerful diodes their contrabution to the total power make up is small. IIRC from my study, on the hydra 52 red, green, uv and violet make up between 3 and 5 percent each when everything is run at the same level. No reason to worry or turn the down.

 

[superdragon]

Short answer, yes. At least that's what I was told by Sanjay Joshi and he knows a thing or 2 about the subject.

Sounds good to me

 

[superdragon]

I suspect they provide some useful light. Both penetrate further and most of our corals come from shallower water depths than people realize. I run one at the same percent as the blues. Considering their are fewer less powerful diodes their contrabution to the total power make up is small. IIRC from my study, on the hydra 52 red, green, uv and violet make up between 3 and 5 percent each when everything is run at the same level. No reason to worry or turn the down.

I didn't know that. Do you think it's the same for Radions? I know they are the same company now.

 

[Wazzel]

I didn't know that. Do you think it's the same for Radions? I know they are the same company now.

It is similar for the radions. They are the same company, but still function independently.

 

[zeemofree]

Are red and green leds harmful or even not necessary in full spectrum LED units, (ie Ecotech, AI, etc.) for sps health, growth, color? thanks

I think they would work fine, I get direct sunlight on to my corals and Nems and they love it, with out the sunlight my tank might not be as healthy,

 

[madweazl]

Short answer, yes. At least that's what I was told by Sanjay Joshi and he knows a thing or 2 about the subject.

I dont know the context of what your conversation with this individual was but plenty of light from those spectrums penetrate the water to depths most of the inhabitants our tanks reside in (especially the greens). There are peak absorption rates within these ranges as well. How useful are they? No clue but I'd rather have something that matches them closer.

 

[Reef Frog]

Red light is used for photosynthesis but is a minor player compared to the blue spectrums. 10k light has some red spectrum at least in T5s. Green is not needed or used for photosynthesis but can be pleasing to the viewer. No coral reef aquarium has ever suffered from lack of green light - totally optional.

 

[Bpb]

Someone correct me if I'm wrong but I've heard and read, as well as see on most photosynthetic response curves that green/cyan light is beneficial in the production of carotenoid pigments (reds and oranges)


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[NewReefer42]

Someone correct me if I'm wrong but I've heard and read, as well as see on most photosynthetic response curves that green/cyan light is beneficial in the production of carotenoid pigments (reds and oranges)


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I don't think this is correect. Carotenoids exist in photosystem 1 and 2 to prevent excess energy from damaging the syatem, i.e. to absorb UV and high end purple/blue rays. The ability of a photosynthetic organism to MAKE carotenoids is a function of the energy state of the creature. Biosynthesis of carotenoids requires energy from the organism, energy that it cannot get from green light.

Source: M.S. degree in protein biochemistry.