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Thread: 18 Hours Light.. 6 Hours Dark??

  1. #1

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    Default 18 Hours Light.. 6 Hours Dark??

    When people say you need 18 Hours light, and 6 hours dark, does it mean it needs complete darkness? I have the curtains drawn will that be ok?
    Long Live The Queen.

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    Dark does mean complete dark really. The 18/6 you refer to is lighting for veg period, i just leave my veg light on all the time, altho i've been told 20/4 is best for root production and the classic 18/6 is quicker for showing preflowers enabling sexing sooner. Light and dark periods become much more important during flower stage, light leaks during dark period can cause plants to hermy or if severe enough the plant will revert back into veg. This problem is only gonna get worse as the days lengthen, i would invest in some blackout material for your curtains or better still get a grow tent - instant lightproof enclosure or make one if you are handy at DIY

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    Complete darkness yes. Any problems with this might cause plants to go hermi.

    Btw, it's not a war on terror. You can't have a war against a concept, lol...

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    as people have said complete darkness would be good but I feel a tiny bit of dim light leeking in will not be a problem, I mean in nature there will be light from the moon..

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    I have the curtains shut but they are red curtains so the light seeps through, if you could imagine waking up in the morning with the light glazing through..

    Anyone know what I mean? Will this effect it?

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    yeah its ok sayin that root but your better safe than sorry its hard to spot a hermy plant then when its dry you find loads of seeds.i take no chances man mines in the loft and i dont even go up there lights out.weed heed

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    You only need complete darkness when flowering,in veg(18/6) it doesn't matter if the lights leaking in or not but you'll definatly need to sort it out when you switch to 12/12 to flowering them.
    Buy some black n white plastic sheeting from your local hydro store and make a lightproof curtain for when you start flowering.
    Plant a Seed
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    Free, Free, Palestine

    1,2,3,4 - Occupation no more
    5,6,7,8 - Israel is a Terrorist state

    Went on a march today - It's a bit infectious

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    Quote Originally Posted by Tripples View Post
    Free, Free, Palestine

    1,2,3,4 - Occupation no more
    5,6,7,8 - Israel is a Terrorist state

    Went on a march today - It's a bit infectious

    Hear hear!!

    Many people don't know the real history of the region now known as Israel!

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    Quote Originally Posted by incognito187 View Post
    Hear hear!!

    Many people don't know the real history of the region now known as Israel!
    It's ok to fire rockets into Israel, but when they try to defend thereselve it's terror, yep

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