Light height

Discussion in 'General Discussions and Advice' started by Shaunr464, 1 Jun 2016.

  1. Shaunr464

    Shaunr464

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    Hi need some help
    I need to mount my light over my frag tank
    Light is 2 x T5 34w
    2 metal halide 150 watt combo
    10 000 k bulbs
    Tank dimensions
    2000 x 500 × 350
    Water height 300
    What would be the recomended height above water level to mount the light

    20160529_195636.jpg
     
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  3. RiaanP

    RiaanP Moderator

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    For the MH part, unit should be minimum 200mm above the water to limit changes of accidental splashing the hot glass. Tank is shallow so it would not matter if you go even up to 250mm
     
  4. OP
    Shaunr464

    Shaunr464

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    Thanks RiaanP
    What duration is recomended to have MH on for
     
  5. RiaanP

    RiaanP Moderator

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    On the unit you got, I would start with the T5 first. Say your schedule is 8 to 20, then run the T5 from 8 to 20.
    Will run the MH from 11 to 15. Maybe 10 to 16, depending on type of corals. Intense light corals like SPS, will run it longer. Softies shorter.
     
  6. OP
    Shaunr464

    Shaunr464

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    Kewl thanks Riaan
     

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