LED light spectrum and

Discussion in 'Advanced Topics' started by Dane, Sep 6, 2016.

  1. Dane

    Dane Junior Member
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    The light in question, 300 watt Marsaqua. I bought this light because I didn't have the cash to throw at a good light, i.e radion, kessil etc. I could have probably gone the t5 route...oh well. I knew when I was doing my homework on this light that I would want to change out the leds that push this thing to far into the red end of the spectrum. The leds are stupid easy to replace and I can find just about anything in the spectrum inexpensively. Here's what it has:


    [FONT=&amp]Dimmer One:[/FONT]

    • 14 x Cool White 12,000k
    • 10 x Neutral White 7500k
    • 10 x Warm White 3500k
    • 4 x Red 660nm
    • 4x Green 520nm
    • 8 x Blue 460nm
    [FONT=&amp]Dimmer Two:[/FONT]

    • 20 x Royal Blue 450nm
    • 30 x Blue 460nm

    I was thinking of losing the reds, greens and warm whites, maybe the 7500Ks? What would you recommend in their places? 10-15K? UV? What would you recommend as an ideal spectrum?

    Thanks!
     
    #1 Dane, Sep 6, 2016
    Last edited: Sep 6, 2016
  2. David Grigor

    David Grigor TCMAS Old Timer
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    Feel free to get rid of the red/greens or just put some black tape over the cover to block them. I personally would NOT get rid of the warm/neutrals. Cool whites while they are great for green/blue/purple corals are not so good for all others. If you want a well rounded community tank I would not run just cool whites. Better off just lowering the overall intensity and not really messing with them than to remove them.
     
  3. OP
    Dane

    Dane Junior Member
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    Would there be any benefit to removing the greens/reds replacing them with 420nm? Would eight 420nm be too much?
     
  4. zoolan70

    zoolan70 Senior Member
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    I use these lights and haven't changed them at all. I've been very happy with them for what they are...I'm able to grow what I want under them. I have softies / zoas on the bottom of a 36" deep tank that are doing great. Stuff up higher is growing very fast. I'm not trying to grow high-end SPS, but like I said, I didn't plan to.
     
  5. David Grigor

    David Grigor TCMAS Old Timer
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    UV/Violet would be fine to swap for it you wanted. IMO, you can't really have too much actinic. Only issue is with just 2 channels fine tuning a color when you have lower spectrum in with your whites. I found that to be the case with the reef breeders.
     

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