mh ?

Discussion in 'Metal Halide Aquarium Lighting' started by wayne, Jul 11, 2009.

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  1. wayne

    wayne Fire Worm

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    will 2 mh that are 250 watts be ok on a 125 gallon tank for any kinds of coral
     
    wayne, Jul 11, 2009
    wayne, Jul 11, 2009
    #1

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  2. acemow

    acemow Purple Spiny Lobster

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    I'm sure others will reply in more detail, but some corals that need strong lighting will probably be okay high up in tank, while others will be okay further from lights. What are the dimensions of tank? That makes a difference in how the light will penetrate the water depth. All corals are different, doing your research on their light needs will be key. Happy Reefing!
     
    acemow, Jul 11, 2009
    acemow, Jul 11, 2009
    #2
  3. wayne

    wayne Fire Worm

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    its 72"x18"x23"
     
    wayne, Jul 11, 2009
    wayne, Jul 11, 2009
    #3
  4. the fisherman

    the fisherman Vlamingii Tang

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    23" deep 250 watts is good for that set up
     
    the fisherman, Jul 11, 2009
    the fisherman, Jul 11, 2009
    #4
  5. wayne

    wayne Fire Worm

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    Sweet I'm goin to get them than
     
    wayne, Jul 11, 2009
    wayne, Jul 11, 2009
    #5
  6. wayne

    wayne Fire Worm

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    Sweet I'm goin to get them than how long should they be on for
     
    wayne, Jul 11, 2009
    wayne, Jul 11, 2009
    #6

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  7. Otty

    Otty Giant Squid

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    How many cross members do you have on top of the tank... 2 or 3??
     
    Otty, Jul 11, 2009
    Otty, Jul 11, 2009
    #7
  8. wayne

    wayne Fire Worm

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    3 holes so that wood be 2 I like but if I have to ill cut them out
     
    wayne, Jul 11, 2009
    wayne, Jul 11, 2009
    #8
  9. Otty

    Otty Giant Squid

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    You cut them out and you will have a bunch of water on the floor. That is what is used for brace against the tank bowing. I would go with 3 MH's over each hole or you will have a shadow you see all the time. Just lower the wattage and add another one.
     
    Otty, Jul 11, 2009
    Otty, Jul 11, 2009
    #9
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  10. GoToSleep

    GoToSleep Torch Coral

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    Many folks will run their MH's for 8 hours during the middle of the photoperiod with some other lights that come on a few hours before and go off a few hours after. This loosely approximates sunrise and sunset. Naturally, you can get more sophisticated if you wish.
     
    GoToSleep, Jul 11, 2009
    GoToSleep, Jul 11, 2009
    #10
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