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  1. #1
    Senior Member Khoa's Avatar
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    What do you guys think about this setup

    I have a 90gal, with 750w of halide.

    I plan on doing 400w halide (20k in the middle) 2x175w 14k on each side of the 400w.
    Would this 400w 20k lid up the tank good? As i am currently using a 14k arc on the 400w halide.

    The reason im doing this is
    1 - keep the temp down
    2 - have some artinic look
    etc.

    I would like to get some feedback on this tanks.
    Newbie in training

  2. #2
    Senior Member
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    I'd actully keepthe 14000k you have bulb for the 400 watter in the middle, and use the 2 x 175's on the sides with 14000k or 20000k to help with the 'blue' if that's the colour you're after. I can't answer for you, but for me, I like light intensity in a reef system so I'd utilize that 400w bulb to its best par potential.
    George

  3. #3
    Senior Member Ironman's Avatar
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    Khoa,
    I was thinking on doing something similar. I have 2x250W 14,000K Arc MH and was thinking on going with another 250 but 10,000K in the centre. I find my tank a little too blue and dim.

  4. #4
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    I'm confused at what you mean by keeping the temp down? I'm not sure how switching your bulb will lower the temperature of your tank?

  5. #5
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    A 400 watt 20000k bulb will run cooler compared to a 400 watt 10000k bulb. I guess it has to do with the spectrum and the intensity difference.
    George

  6. #6
    Senior Member mickyfin's Avatar
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    Really?

    Are you confusing colour temperature with heat temperature?
    Don't Panic Feel free to visit my blog -> Internet Tough Guy.

  7. #7
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    Yes, i literally mean the temp of the bulb. I've run 175w 14000k ARC bulb and a 20000k ARC bulb in the same socket and there's a big difference in the heat that emanates from my reflector. I did another test and dug up an old 175w 5500k coralife bulb (the good old days huh?) and plugged it in the same socket. Wow, I could've cooked a breakfast for 8 on my canopy. lol. I could still touch the canopy with the 20000k bulb. With the 5500k bulb, it would've hurt.
    George

  8. #8
    Senior Member Khoa's Avatar
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    George is right it got to do with the intensity and spectrum of the light.

    I'm currently testing it out now.
    I'll keep everyone updated.
    Newbie in training

  9. #9
    Senior Member reefsurfer's Avatar
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    The higher the par rating the higher the temperature.
    PLEASE SEND ALL ACROPORA FRAGS TO THE REEFSURFER

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