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  1. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.

    https://barrreport.com/threads/aquatic-plant-images-wanted.14374/
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Kelvin and Plant Growth.

Discussion in 'Lighting' started by bryanjames, Feb 5, 2016.

  1. bryanjames

    bryanjames Subscriber

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    I've been going on the idea that Kelvin does not have a role in photosynthesis as it is merely an aesthetic rating but then I see people discuss how they get better growth with X Kelvin combined with Y Kelvin lamps or when they add a lamp with Z Kelvin their plants grew fast and changed color. Are they confusing the results of the spectral power and intensity of the lamps with the Kelvin rating?


    What am I missing?
     
  2. jedimasterben

    jedimasterben Junior Poster

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    Kelvin doesn't really mean a lot. It is an approximation of what the color of the light is, which doesn't say a lot about the spectral makeup or quality of the light. An RGB LED (which uses only 470nm, 530nm, and 630nm light with not much overlap) can visually look like, say, a GE daylight lamp, but the plants won't look right or grow the same since there is a lot that is missing spectrally.


    [​IMG]


    [​IMG]
     
  3. bryanjames

    bryanjames Subscriber

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    Thanks for clearing that up!
     
  4. easternlethal

    easternlethal Lifetime Members
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    I'm guessing that's why you add cyans, violets blues etc. to your setup.. but how do you know what to add to achieve the best spectral makeup?
     
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