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What lighting changes will have a positive impact on the reduction of algae?

  • Reduce lighting period

    Votes: 119 32.1%
  • Reduce lighting intensity

    Votes: 45 12.1%
  • Reduce lighting period and intensity

    Votes: 83 22.4%
  • Program a "noon" burst of light (ie 3hrs 1.5wpg, 4hrs 3wpg, 3hrs 1.5wpg)

    Votes: 36 9.7%
  • Program a lights off "siesta" (ie lights on 5hrs, off for 5hrs, on for 5hrs)

    Votes: 33 8.9%
  • Change the spectrum/color temperature of lights

    Votes: 24 6.5%
  • I don't know: I never have algae! ;-)

    Votes: 31 8.4%
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All elements need to be balance to keep algae on check and lighting is only one of them.
+1

and just to paraphrase - what i believe is everyone's goal to control algae; "you want your plants to outcompete the algae for nutrients"

this is more likely to occur with vigorously growing plants; which is why people step on the light/co2/fertz gas pedal, rather than the opposite

Sent from my iPhone
 
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