What, blue versus white, lighting combo gives the best coral growth?

BRS

What percentage of blue versus white lighting do you think makes the best coral growth combo?

  • All Blue

    Votes: 21 2.7%
  • Mostly Blue

    Votes: 474 61.9%
  • Even Balance

    Votes: 200 26.1%
  • Mostly White

    Votes: 57 7.4%
  • All White

    Votes: 2 0.3%
  • Other (please explain)

    Votes: 12 1.6%

  • Total voters
    766

revhtree

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Back in the day we were always told that you needed the white light to make the corals grow and the blue was to make them pop. Today we know differently but what exactly is the BEST percentage combo to experience the best coral growth from a lighting aspect? Throw all the other variables out the door as if they were perfect. This is about Blue versus White! Let's talk about it!

What percentage of blue and white do you think makes the best coral growth combo?


image via @minus9 and their @Kessil and @Orphek lit reef tank!
A51E1BE7-4B92-420F-AAB0-45BEDAC34757.jpeg
 

LRT

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Brs reccomended program for my fixture is blue heavy. I have slightly modified white channel and elevated some blue channels to fit mount height of my lamp. I'm positive brs couldn't have gotten it better as far as coral health and growth. My corals tell me that.
 

minus9

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Wow, thanks for sharing a pic of my tank. Those are OR2 blue plus (the front one is the 1st version with the cyan diodes at the ends). I primarily run my Kessil's whiter during peak hours and the Orphek's provide the blue pop. Pics always appear more blue than in person, even with the filters on my phone.
I'm currently running the Kessil's at 35% color, slowly working my way up to 50% color during peak hours.
 

stephj03

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I ramp up every LED I paid for to 100% and supplement with Reefbrite. This produces about:


60% blue/UV, 40% white/red/green/others (excluding MH supplementation)

In my tank, this gives about a 20k look fwiw.


Makes it a little harder to sell high end frags but that's another story.
 
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revhtree

revhtree

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Keep the input coming!
 
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revhtree

revhtree

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I have my Hydra 32 HD's cut down to 30 for the Cool White. Supplemented by ATI Blue Plus (@ 35%) and ATI Actinic (@ 75%). Will probably adjust the Hydra 32 HD's down a little more...lots of PAR up top.

Thanks for sharing!
 

bg2311

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Wow, thanks for sharing a pic of my tank. Those are OR2 blue plus (the front one is the 1st version with the cyan diodes at the ends). I primarily run my Kessil's whiter during peak hours and the Orphek's provide the blue pop. Pics always appear more blue than in person, even with the filters on my phone.
I'm currently running the Kessil's at 35% color, slowly working my way up to 50% color during peak hours.
Do you find the pair of Noctua fans usually sufficient to remove the heat trapped over the tank where the lights are mounted? I've done something similar in the past before we had a dedicated A/C in the the room with the display. It was for evaporative cooling and there was no lighting canopy though.
 

ReefGeezer

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Not as simple as Blue vs. White. White light is made up of all the color spectrums that include the blue spectrum. Generally speaking, the most beneficial light for corals and their zooxanthella is light in the violet to blue green portion of the spectrum (that includes blue) and a little in the red orange to red spectrum. These colors are at each end of the visible light spectrum. Corals really don't use much of the yellow and green in the middle of the spectrum. Unfortunately, there is normally a lot of those in standard white lighting. It may be that the benefit of using white light is just to replace the red spectrum that is missing from blue lights.
 

BiggestE222

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Are those Orphek OR3 Blue Plus strips? Running a mix of Blue Plus, Day Plus. Our UV one is in the mail.
I have XR30 G5’s and turn the red to zero. Greens to 10s and white to 25. All other colors 100
 

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minus9

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Do you find the pair of Noctua fans usually sufficient to remove the heat trapped over the tank where the lights are mounted? I've done something similar in the past before we had a dedicated A/C in the the room with the display. It was for evaporative cooling and there was no lighting canopy though.
I actually have 3 fans now, one is the 24v version. I'll have to take an updated pic. Yes, they keep the tank cool. I leave the windows open until the outside temp hits the low 80's, the tank barely hits 78 when it gets that warm.
 

willieboy240

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I suppose it’s who you listen too. If you follow the big boys. Sanjay runs all his lights at 100%. He believes that the corals get something from every color spectrum.
That being said. Old school reefers with MH. Don’t really get to pick a specific color. Just a general color. And MH are the best hands down for growing sps.
something to think about.
 

Hydrored

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I added some whites and the SPS colored up much better and overall better growth, LPS took time to adjust as previously I ran much more blue-

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jsker

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I have had the best results with running mostly blue with AI Hydra 26's

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