The Planted Tank Forum - View Single Post - Comparison of Lighting Types (Lumens and Watts)
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Old 11-11-2009, 02:25 PM   #28
lauraleellbp
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Kelvin rating only refers to the color of the light coming from the bulb and has little to do with anything other than aesthetics when it comes to a FW planted tank.

I know there's quite a bit of discussion of Actinic light, coral photosynthesis, and water penetration over in the SW hobby, but that's not really applicable to the FW side.
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