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Old 02-16-2006, 01:58 AM   #1
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HQI question

i have a Commercial Electronic HQI light 500w... its used for lighting up a work area... i was just wondering what is the difference with this type of light and one meant for a tank... other then the bulb.. thanks for any help
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Old 02-16-2006, 11:16 AM   #2
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The spectrum of light that is emitted from that bulb (and any other bulb for non-aquarium use) is far too low and yellow in color. Using that bulb could induce algae growth.

You would be better off getting a bulb made for aquarium use.
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Old 02-16-2006, 06:02 PM   #3
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You can use the HQI, but I would get a 10-14k bulb meant for reef use.
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Old 02-16-2006, 06:06 PM   #4
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Quote:
other then the bulb
Doh!! I guess I should have read it a little closer. The fixture is fine as DragonForce said as long as you have the correct bulb for aquarium use in it.
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Old 02-16-2006, 07:03 PM   #5
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I have to say I have never seen a 500 watt HQI bulb that is in the right spectrum for aquarium use. If you find one, it should be fine.
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Old 02-16-2006, 07:10 PM   #6
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Are you sure what you have is not a 500W halogen shop light with a double ended bulb. They are common in 500w.
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