MH vs HQI

Discussion in 'Metal Halide Aquarium Lighting' started by stonepilot, Apr 5, 2006.

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  1. stonepilot

    stonepilot Astrea Snail

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    So the tank depth will be 18 inches , but my real question is one better than the other and why. thanks for all help.
     
    stonepilot, Apr 5, 2006
    stonepilot, Apr 5, 2006
    #1

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  2. Matt Rogers

    Matt Rogers Kingfish

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    I believe HQI is a bit more intense - putting out more PAR.
     
    Matt Rogers, Apr 5, 2006
    Matt Rogers, Apr 5, 2006
    #2
  3. rickzter

    rickzter Torch Coral

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    Watch the eyes with HQI's!
     
    rickzter, Apr 5, 2006
    rickzter, Apr 5, 2006
    #3
  4. Covey

    Covey Scooter Blennie

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    HQI is MH but MH isn't HQI. The best way to describe it is DE double ended bulb or SE Single ended bulbs. As far as PAR ones not really per say brighter than the other.
    The best link for MH i've ever seen. Real impartial scientific testing.
    http://www.reeflightinginfo.arvixe.com/
    Compare all you want.
     
    Covey, Apr 5, 2006
    Covey, Apr 5, 2006
    #4
  5. stonepilot

    stonepilot Astrea Snail

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    so Covey which do you prefer. it will hold a variaty and the lights will be adjustable up and down 60x18x18
     
    stonepilot, Apr 6, 2006
    stonepilot, Apr 6, 2006
    #5
  6. muck

    muck Plankton

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    Id go with 250 SE bulbs running on M80 HQI ballast personally. ;D
     
    muck, Apr 6, 2006
    muck, Apr 6, 2006
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  7. Matt Rogers

    Matt Rogers Kingfish

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    I was looking at that yesterday Covey, but I couldn't manage to compare say a 250 halide to a 250 HQI halide from the same manufacturer. Did you have better luck?
     
    Matt Rogers, Apr 6, 2006
    Matt Rogers, Apr 6, 2006
    #7
  8. rickzter

    rickzter Torch Coral

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    Not to steer the thread or anything but since we are on the subject... is there any report or finding that SE MH bulbs cause better shimmer than DE HQI bulbs?

    And... which is more beneficial, HQI DE or MH SE? Also, which is more beneficial in the long run, electronic ballast or magnetic?
     
    rickzter, Apr 6, 2006
    rickzter, Apr 6, 2006
    #8
  9. Covey

    Covey Scooter Blennie

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    The brightest choice but it will cut your bulb life to 6-8 months. The PFO HQI ballast will drive some 250W Bulb over 370W!
     
    Covey, Apr 6, 2006
    Covey, Apr 6, 2006
    #9
  10. Covey

    Covey Scooter Blennie

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    Covey, Apr 6, 2006
    Covey, Apr 6, 2006
    #10
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