how many of these 4ft LED's would i need...

Discussion in 'Planted Tanks' started by cheddar254, Sep 13, 2010.

  1. cheddar254

    cheddar254 _CoRyDoRa_

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    Hi everyone,

    I am going to be doing a medium-low tech planted tank. My question is how many of these 4ft ( t8( referring to how many lines of LED's and diameter)) 21w Leds for my 393l tank to give "1-2 wpg" of lighting. the tanks measurements are 1.3m * 55cm * 55cm. attached are pics of the light and the tanks currents brightness. Please try and help me:idea:

    13092010001.jpg

    13092010002.jpg
     
    cheddar254, Sep 13, 2010
    #1

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  3. Rudi

    Rudi

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    It's not really feasible to use the 'wpg-rule' when using LED's.
    Use two strips or tubes and see how it works.Your plants will soon tell you if you need more light.
     
    Rudi, Sep 13, 2010
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  4. OP
    cheddar254

    cheddar254 _CoRyDoRa_

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    ok thanks will try that.
     
    cheddar254, Sep 13, 2010
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  5. Donovan

    Donovan

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    i have a combination of 3 x 2foot tubes and 1 x 1.5m blue strip algae growth was crazy when the blue strip was working properly but now with many of the LEDs not working properly the Algae growth has stopped
     
    Donovan, Sep 14, 2010
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  6. shihr

    shihr Glosso

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    u make it sound as if algae growth was a good thing :p hehe..

    anyways, do what Rudi suggested.. thats how i tried when using my flourecents
     
    shihr, Sep 14, 2010
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  7. Donovan

    Donovan

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    well i had no fish in my tank at the time and it was interesting to see how stuff was growing in the tank, some algae growth for me is not a problem as long as it doesnt take over the entire tank.
     
    Donovan, Sep 15, 2010
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