Interesting lighting Info

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Other than aesthetic value, there appears to be no advantage, photosynthetically speaking, in using high Kelvin lamps.

The implication of these results should be of interest to hobbyists; it suggests that lamp selection (with due regard to lamp intensity) may be based on appeal, whether that is price or the "look" it gives to a tank, without fear of hindering photosynthesis. Economy-minded hobbyists and coral farmers may find this especially useful. It appears that light intensity and relatively simple light measurements alone adequately judge lamp efficiencies within the context of zooxanthellae photosynthesis. This should not be construed to mean that all light sources are adequate for reef aquaria use.

Source: Advanced Aquarist's Online Magazine - Feature Article: Lighting the Reef Aquarium - Spectrum or Intensity?
 

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