I have seen new power compact light bulbs advertised that are rated at 10,000K. Would there be any benefit to swapping the 7,100K actinics for these new bulbs?
>> In my opinion, not enough to warrant the change, functionally or for looks. The mix of spectra you have now is fine on both counts. What is remarkable (so I’ll mention it) is the effects of “other” influences on light transmission, absorption in your system that you can influence, notably “color” and dissolved organic compounds, and the depth/placement of your corals. These factors can exert a very large effect on the quality and quantity of light reaching your photosynthetic livestock… Color and DOCs are best dealt with by way of a regular regimen of partial (half let’s say per period) gravel vacuuming in concert with partial water changes, efficient protein skimming, and the use of activated carbon (once a month let’s say) in your filter flow path. Placement is a huge subject, but basically concerns the raising/lowering of livestock nearer the surface and proximity of your light source to provide more red-end and higher intensity light. Individual specimens and species are seen
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