Light Suspension Hight

Discussion in 'Metal Halide Aquarium Lighting' started by dh1758, Mar 20, 2008.

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  1. dh1758

    dh1758 Astrea Snail

    Joined:
    Feb 15, 2008
    Messages:
    60
    Location:
    Minot, AFB
    I just suspended my 760w MH light and right now it is sitting about 5 1/2 inches from the water surface. Does this sound like a good distance?
     
    dh1758, Mar 20, 2008
    dh1758, Mar 20, 2008
    #1

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  2. aquaboy

    aquaboy Panda Puffer

    Joined:
    Jul 27, 2007
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    2,112
    Location:
    Tatamy, PA
    yeppers, i have my dual 250 halides about 8-9 inches over my 55 gal, as they are extreme overkill at the moment :p
     
    aquaboy, Mar 20, 2008
    aquaboy, Mar 20, 2008
    #2
  3. reef_guru

    reef_guru Humpback Whale

    Joined:
    Apr 4, 2007
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    2,753
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    joliet,il
    without a par meter there is no way of answering this, different bulbs produce different par, dependant upon the height of the particular bulb will change the par. certain corals need certain par values.
     
    Last edited: Mar 21, 2008
    reef_guru, Mar 21, 2008
    reef_guru, Mar 21, 2008
    #3
  4. coral reefer

    coral reefer Giant Squid

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    Wonderland
    that is a safe distance
     
    coral reefer, Mar 21, 2008
    coral reefer, Mar 21, 2008
    #4
  5. Tangster

    Tangster 3reef Sponsor

    Joined:
    Aug 16, 2006
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    I set them to about 10 inches for more even lighting and at 5 or so the heat transfere will be far more and the picture is small but is that a glass cover on the tank ? If so remove it as soon as you can. Yesterday would have been my choice..
     
    Tangster, Mar 21, 2008
    Tangster, Mar 21, 2008
    #5