Quetion on lighting placement

Discussion in 'Reef Lighting' started by ENGINE 41, Jul 13, 2007.

to remove this notice and enjoy 3reef content with less ads. 3reef membership is free.

  1. ENGINE 41

    ENGINE 41 Astrea Snail

    Joined:
    Jun 28, 2007
    Messages:
    34
    I built a canopy for my 75G and it is 49'' wide x 19'' deep x 14'' high and I mounted my MH's 12'' off the water. The question I have is 12'' to high for the atinics or should I make them lower, and if so how low would you recommend... Thanks
     
    ENGINE 41, Jul 13, 2007
    ENGINE 41, Jul 13, 2007
    #1

    2. Click Here!

  2. Tangster

    Tangster 3reef Sponsor

    Joined:
    Aug 16, 2006
    Messages:
    5,644
    Location:
    Va/Ct
    Put the tubes about 3 inches above the tanks rim closer the better with VHO's T5's or P/Cs
     
    Tangster, Jul 13, 2007
    Tangster, Jul 13, 2007
    #2
  3. Sndwave80

    Sndwave80 Bristle Worm

    Joined:
    Jul 5, 2007
    Messages:
    139
    Location:
    Western Wisconsin
    Keep the MH high as the heat will warm up the tank and any water being splashed around by fish could break a bulb when hot. The VHOs can be closer to the bottom.
     
    Sndwave80, Jul 13, 2007
    Sndwave80, Jul 13, 2007
    #3
  4. coral reefer

    coral reefer Giant Squid

    Joined:
    Jan 9, 2006
    Messages:
    4,860
    Location:
    Wonderland
    I have my halides at 5" above my water is all. I have no salt creep issues nor do I have a big problem with the halides increasing the water temp as a continuously run a fan to aid in evaporational cooling!
     
    coral reefer, Jul 14, 2007
    coral reefer, Jul 14, 2007
    #4