Xr15 g4 pro help please!@!!

Discussion in 'Aquarium Lighting By Dana Riddle' started by mikeandkerry, Feb 8, 2018.

  1. mikeandkerry

    mikeandkerry Active Member

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    I have of these on a 30x30 x24 cube
    With one light I was getting 50 par on bottom corners and like 600 top center
    No idea why I bought another one but I did
    Now I'm thinking it's just 2 much light for the cube
    Please anyone with Info please help
    I do want to grow acro s
    It's what I'm working towards
    So if I need to keep it I will if not
    Sell or trade for something I need
     
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  2. tankstudy

    tankstudy Well-Known Member

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    You can turn down the intensity to reduce the par but I would personally run two or even more.

    I run a Gen3 XR30 over a 20 nuvo fusion which is 24" in length. Honestly, if I could, I'd run 4 pucks of LEDs on my 20 nuvo but at the point, it's too pricey.

    This provides light from all angles so you get a better growth appearance of the corals. My zoanthids and palys even with sufficient par tend to angle themselves towards the pucked LEDs when they are on the outer rims of the units.

    Don't get me wrong, one unit can definitely grow stuff but stuff may grow out to look unbalanced.

    Similar to how house plants get sufficient light to grow but will angle themselves towards the light source. I'm not a fan of that look.

    This is just my opinion on what I would do.
     
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  3. mikeandkerry

    mikeandkerry Active Member

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    Thanks
    Good info
    Anyone else have an opinion?
     
  4. PmCarbrey

    PmCarbrey Active Member R2R Supporter Gold Sponsor Build Thread Contributor

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    Sounds like you need diffusers or wide angle lenses. You've got a pretty heavy spotlight in the center, lenses or diffusers would help spread the PAR a bit more evenly
     
  5. mikeandkerry

    mikeandkerry Active Member

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    Well that par reading is with one light on high intensity
     
  6. PmCarbrey

    PmCarbrey Active Member R2R Supporter Gold Sponsor Build Thread Contributor

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    I'd argue you need them anyway, radions and kessils suffer from the same issue, they have huge spotlight effects, and par drops off steeply at the edges of the spread. Even if you are planning on using two lights you would get better, more even coverage with either lenses or diffusers. Even with two lights, you will just have two hotspots instead of one.
     
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  7. mikeandkerry

    mikeandkerry Active Member

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    Got ya .....
     
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