Disco effect

Discussion in 'Lighting' started by nudibranch, 18 Nov 2013.

  1. nudibranch

    nudibranch

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    Hi All

    So with the new DIY LED installed and running I notice the disco effect as I have alot of movement on the water surface. Will this have any effect on the LS and corals in the future once my cycle is complete?

    20131117_180035.jpg
    20131117_180023.jpg

    Thanks
    Paul

    20131117_180035.jpg

    20131117_180023.jpg
     
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  3. RiaanP

    RiaanP Moderator

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    Disco?
    or
    Shimmer?

    MH will also create shimmer. Shimmer is OK, nothing wrong with that.

    Disco is a bit wrong word. More certain bright spots where you can actually see the different coloured diodes clearly. Normally on units where the leds are spaced a bit far apart from each other.

    Then Spotlight. Another term used freely. It means more specific spots brightly lid instead of the everything on that same depth. Like putting your carlights on bright while parked in the garage. Two bright spots directly in front of each light unit, with dark shadowed section in the middle.
     
  4. Bendor

    Bendor

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    What are you referring to? Shimmer as in rays of light in the water column or disco effect with spots on the substrate of different colours depending on led colours.
     
  5. Bendor

    Bendor

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    What he said.
     
  6. nudibranch

    nudibranch Thread Starter

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    I think what I'm referring to is the disco effect as you can see in image 1. The way I understand it shimmer is the rays of light in your tank from your lights. I'm talking about blue and white like movement on the substrate from the lights(white and blue) created by the movement on the water, unless I totally misunderstood what you said
     
    Last edited: 18 Nov 2013
  7. RiaanP

    RiaanP Moderator

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    how far apart are the blue and white diodes?
    And how deep is the tank?
    Also how high above the water is the light unit?
     
  8. nudibranch

    nudibranch Thread Starter

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    Last edited: 18 Nov 2013
  9. Gary Roebuck

    Gary Roebuck

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    and how old is u're first born...:tt2:
     
  10. Gary Roebuck

    Gary Roebuck

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    actually... u left out; lensed or un-lensed..
     
  11. RiaanP

    RiaanP Moderator

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    Will be with Lenses. Narrow beam most likely. Wide lens or without will not create coloured dots. Especially on a 650mm deep tank.

    That is partly the reason, plus the lenses.
    If you got other spare lenses, then swap out some for a wider angle.
     
  12. Ahmed Kamel

    Ahmed Kamel

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    you could also try to reduce water surface movement or
    use diffusing material on the Splash Guard
     
  13. butcherman

    butcherman Moderator MASA Contributor

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    Yes you are getting a dicso effect.

    No its not harmful to your inhabitants.

    2 things we can do here.
    1. replace missing led's
    2. remove lenses

    this will minimise the effect you are seeing
     
  14. nudibranch

    nudibranch Thread Starter

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    ok cool, thanks @butcherman. Will wait until we meet before doing anything. I will look at perspex cover as you suggested in the other post
     
    Last edited by a moderator: 26 Nov 2015
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