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Old 01-09-2004, 12:17 PM   #8 (permalink)
Boomer
Reef Sanctuary's Mr. Wizard
 
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Join Date: Nov 2003
Location: Duluth, Minnesota
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When I changed from 6500k Iwasaki to an AB I noticed zero difference in growth rates and noticable improvement in color.

Growth is a function of PAR/PUR or total irradiace, to include "food" and K plays almost no roll, if any at all. K is mostly a function of change in color, as observed by you, not that the coral has changed . It is our eyes playing tricks on us or in many cases the corals, by certain lighting, which produce a greater response of fluorescing substances.
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Last edited by Boomer : 01-09-2004 at 12:19 PM.
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