Solution to shadow effect

Discussion in 'GHL Advanced Technology' started by Dumaurier7, May 18, 2017.

  1. Dumaurier7

    Dumaurier7 Well-Known Member

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    Hi Marco,Vinny et al , I posted this question but got no response so I decided to start a thread about it, Because of the size of my tank the builder installed two massive cross braces each 24"x18"x 0.5" ,
    [​IMG][​IMG]
    With the Mitras positioned as they are ,under the braces are dark.[​IMG]
    [​IMG]

    I will be installing the fourth LX 7 in the middle alongside the one that's there now, because of the water proofed design (and cost saving advantage !) of the LB2, I am thinking of going with one hung low directly over each brace, is this s good idea? do you think this will eliminate the issue?
     
    Last edited: May 18, 2017
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  2. cheseenlo

    cheseenlo Member R2R Supporter

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    hey there is really just one way to solve shadowing effect with LED, you gotta go buck and cover every inch, or supplement with T5. see the picture

    orphek-atlantik-v3-plus-best-reef-light-coral-e1479165216442-1600x1004.jpg
     
  3. Marco@GHLUSA

    Marco@GHLUSA GHL Team R2R Supporter Platinum Sponsor

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    Hard telling from here, but a 4th fixture should provide you more adequate coverage and not cause too much shading with the brace, is my guess. Unfortunately a lot will depend on how clean you can keep the brace.
     
  4. Dawsokj1988

    Dawsokj1988 Active Member R2R Supporter

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    Dumaurier7 likes this.
  5. Dumaurier7

    Dumaurier7 Well-Known Member

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    I guess I'll see when I get the 4th unit, thanks!
     
  6. Dumaurier7

    Dumaurier7 Well-Known Member

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    Thanks!
     
  7. Dumaurier7

    Dumaurier7 Well-Known Member

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    [​IMG][​IMG]
     
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  8. Dumaurier7

    Dumaurier7 Well-Known Member

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    This is how it looks after the 4th fixture, shadowing still very evident.
     
  9. Dumaurier7

    Dumaurier7 Well-Known Member

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    I'm trying to decide if I should spring for an additional pair of LX7s or try the LB2s , I would be able to easily go with 4 LBs!
     
  10. Dawsokj1988

    Dawsokj1988 Active Member R2R Supporter

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    decisions, decisions!
     
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  11. Dumaurier7

    Dumaurier7 Well-Known Member

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    those dreaded decisions!
     
  12. Caseyoidae

    Caseyoidae Well-Known Member Build Thread Contributor Hudson Valley Reef Keepers Catskill Reef Member

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    Could you possibly mount water proof led strips under the braces width wise to remove shadows?
     
  13. Dumaurier7

    Dumaurier7 Well-Known Member

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    I'm sure If I could find suitable ones , but what ever I go with must be controllable as my MITRAS follow a schedule with all the simulations being active.
     
  14. Caseyoidae

    Caseyoidae Well-Known Member Build Thread Contributor Hudson Valley Reef Keepers Catskill Reef Member

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    Ahh, I see the dillema
     
  15. Dumaurier7

    Dumaurier7 Well-Known Member

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    So I have 1 of my prior lights ( Qmaven Zetlight 6600A) hanging around , I decided to experiment with it to see how it would light the area under the brace![​IMG][​IMG]
    [​IMG][​IMG]

    It totally eliminated the darkness beneath, now I just have to decide on which light!
     
  16. treedog5

    treedog5 Active Member Build Thread Contributor

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    That's a lot of lights for a tank with no corals, are you planning to add corals in the future?
     
  17. Dumaurier7

    Dumaurier7 Well-Known Member

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    Yes.
     
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