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Old 10-26-2003, 12:50 AM   #1
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A cold cathode doing two jobs possible?

I was thinking about building a new hood for my 45 gallon, and adding moonlights, a blue cold cathode tube next to the reg. flourecent tube when I though of something... could I not use a white cold cathode or any other color that hopefully doesn't produce too much UV?? It would make wiring simple... just use a computer power supply. If this could work one could actually simulate morning, afternoon, to night. Like a covered orange cathode in the early morning, white cathode for the day, and a blue cathode for the night. What do you all think??
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Old 10-26-2003, 11:59 AM   #2
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If this works then what size cathode tubes should I get? I mean it would be a smaller orange and blue for early morning and night, while the white one would be larger because of higher nrightness during the day. For a 36inch X 12inch top... how big would each of the cathodes have to be to do their job?.. if this idea is workable
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Old 10-30-2003, 01:53 PM   #3
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anyone?
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Old 11-22-2003, 01:58 PM   #4
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Comparison of flourescent tubes http://www.thekrib.com/Lights/fluorescent-table.html

Some info on colour spectrums for aquatic plants http://www.thekrib.com/Plants/Tech/light-spectrum.html

I also remember a link at the krib to a guy who had actually posted the spectral analysis of various tubes (in other words, the colours distributed by that tube), pretty informative, even if not totally accurate. Dont remember where though. Just check the lighting section at the krib, you're sure to find it.
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