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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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Somewhere along the line, I read that a seller of aquarium light fixtures replaced the blubs in the fixtures that he was selling to prevent the growth of algae. It was mentioned that 10000k grows algae so he replaced the bulbs that came with the light fixtures with 6700k.
I have two tanks. The one with 10000k grows algae. The one with 6700k is algae free. I do not use CO2, just Florish Excel & Seachem and lots of aquatic plants.
 
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