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Auto 20 days slow growth
DoDrugs420answered grow question 4 years ago
Yes.
You can grow them under 12/12 from seed, its gonna be smaller but it doesn't really matter because you are taking advantage of the gaps without plants that are just a waste of light.
Autoflowers will flower under 12/12 without issues, they will also flower basically under any other light schedule, if it doesn't then it isn't an auto, and don't switch from 16/8 to 12/12 unless you already got other photos nearby that need that light schedule switch, but other than that there's no benefit in reducing the light of an auto like if it was a photodependent strain.
If an autoflower does not flower, you must switch her to 12/12, if you have her under 12/12 already then you have a 99,99% that she will flower at some point, some autos start flower at 3rd week, others at 6th, you just never know for sure untill ur growing it.
Stay lit growmie.
HeavyHittahanswered grow question 4 years ago
20/4 or 18/16 light schedule is optimal for autos.
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The8thChevronanswered grow question 4 years ago
On a 12/12, I would say that you're likely right where you would expect to be. Its also time to add some nutes, but introduce them at 1/4 strength and slowly increase to 1/2 strength.
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Organicfrostanswered grow question 4 years ago
Autos need minimum 18/6 but do best on 20/4 from seed to harvest. Some guys even run them 24/0 all the way through. You never drop autos to 12 hours of dark
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Fusionanswered grow question 4 years ago
12/12 from seed won't create large plants.
Next time run your auto on 16/8 , 16 hrs of light.
When auto switches into bud (3-6 weeks), switch the light to 12/12.
If not showing signs of flower switch the light to 16 hrs.
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