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2WPG or 1.35WPG T8 (equivalent). Which one is best for Non-CO2?

Discussion in 'Non-CO2 Methods' started by willsy, Jun 8, 2012.

  1. willsy

    willsy Junior Poster

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    Hi

    I have just setup my new 37G (US Gallons) heavily planted with soil bottom etc, etc as per Tom's excellent guidance.

    Just wondering about the lighting now. I have 2 X 25 W EcoAqua LED lamps (these are roughly T8 equivilents according to the manafacturer Arcadia). This gives me 1.35WPG (of T8 equivilent). If I get another 25W, this would push me up to 2WPG.

    I would like to have good healthy plant growth and would be willing to buy another light if that's what is suggested is best, but don't want to push it over the limits and start to have algae problems and have an expensive light that I don't need!

    My tank is not particularly deep at 18". It's actually about 16.5" high as the glass cover goes about 1" below the top of the aquarium. Therefore I don't think that is a factor to consider.

    Just would like to get it right from the start (if that's possible)?!?

    So should I get another light to go up to 2WPG or stick with what I have at 1.35WPG? :confused:

    Thanks in advance for any advice.

    Will.
     
  2. dutchy

    dutchy Plant Guru Team
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    In the case of a non CO2 tank less light is better. Less light means less CO2 demand from the plants. You have to create a balance between supply and uptake. Just enough light to keep the plants growing is enough, and that's a lot less than most people think. 2x 25 Watts should be enough I think.

    Use a photoperiod of no more than 8 hours. Longer will deplete the existing C too fast, plants won't grow and algae takes over.
     
  3. willsy

    willsy Junior Poster

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    Great, thanks for your adivce Dutchy. I'll try sticking with 1.35WPG in the first instance then.
    Cheers
    Will.
     

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