The flap on the bottom fan is just to cut the light coming out of the front fan, it is lined with black tape as well as just behind the fan, nothing fancy just a little less light.
When i move to flowering i will have lights off at night time (about 8pm) shut curtains and put pantyhose/ tights cut up and on a frame over the back, this is so it will still vent the air freely but will cut alot of dim light. Thats hopefully what will happen.
the front vent is alright because the drainage tray blocks light to the plant underneath.
I don't want to put carbon scrubbers on the back because the restriction will cause my temps to soar.
The case doesn't have to be pitch black on lights out, what about plants on a roadside? car lights on them for a second or two every minute of the night and they do well. so a flash every now and then or a very dim glow is not going to interfere with their flowering cycle.
That is theory anyway, there is also light from the moon, so i think i will be alright
but we will see about that.
Also in some of the pictures the leaves are curling up like a canoe. I noticed the leaves do this after i had a fan blowing on them for 24hrs, so obviously dry air blowing on them made them curl up and try to protect itself or release moisture from the stomatas. The problem is the other leaves on the new growth seem to be doing the same and the fan is not on the plant any more.
Thanks
The flowering hormone is produced the whole life cycle of a plant, but it reacts badly with light. This means that when you switch to 12/12 lights the 12 hours of darkness will keep the flowering hormone in the plant high enough to start flowering. A outdoor cannabis strain should be able to flower under 0-1 lux. The moon is 0.27 lux on a clear night according to wikipedia, but i am guessing it depends a lot on where you are, it is often just rounded up to 1 lux.
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The lux (symbol: lx) is the SI derived unit of illuminance or
illumination. It is equal to one lumen per square metre.
• sunlight on an average day ranges from 32 000 to 100 000 lux
• TV studios are lit at about 1 000 lux [i.e. 1000 lumens
per square metre]
• a bright office has about 400 lux of illumination
• At sunset and sunrise, ambient outdoor light is also about
400 lux (if the sky is clear).
• moonlight represents about 1 lux
• starlight measures a mere 0.00005 lux
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a area with 1 lux of light might flower, it might not, but it will most certainly use longer time then 0 lux. The problem is that you most likely are not working with out door strains, but more likely some but raped 1000 generation indoor green house strain.
I have read about grows where some strains have flowered early, some late and some never inside the same aaaaaalmost dark flower room.
It might go ok, it might not. It all comes down to the genetics, and they can be quite different from plant to plant.
Edit: To sum it up, you gotta try first hand to know for sure
Edited by anon4life, 19 June 2012 - 04:30 PM.