Autoflower 18/6 vs 24

Hi, I wonder which one is better between 18/6 or 24 light schedule? don't get me wrong I did some research but some of them are old information, so I want to know if there's anything new about this
Thanks in advance.

im leaning towards 18/6 as i have a cbd pure 30-1 under 24 hrs and its just growing like a photo. im concidering contacting seedsman and letting them know and see if they can help me with the issue.
i have read that some autos will only flower under 18/6, so im going to give it a try. just wish i could get my girls outside, but were still getting ground frosts bummer

Srirachagrower said:

Hi, I wonder which one is better between 18/6 or 24 light schedule? don't get me wrong I did some research but some of them are old information, so I want to know if there's anything new about this
Thanks in advance.

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for the best results u want a 20/4 time
20 hours on makes them hard as rocks and 4 hours off gives a chance for them to rest and build up the frost if u are using the right mix of feeds

bud candy mixed with mag sulfate.....it grow glands on outdoor plants
https://www.amazon.com/Roots-Organics-Elemental-Supplement-Fertilizer/dp/B00CJJ438A
this stuff plus bud candy on a 20/4 time will get u the most out of the plant ....u will be looking at about 4 gram oil return on a oz of bud / or just really crystally bud

go go kid said:

i have read that some autos will only flower under 18/6, so im going to give it a try. just wish i could get my girls outside, but were still getting ground frosts bummer

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This just isn't true. Autoflowers will flower based on genetics regardless of light schedule.

well i have a 6 weekold auto cbd 30-1 plant and its just like a photo would be, i think ill contact the company and see what can be done about it. thanx

20/4 like @justugh said
Otherwise go with 18/6

go go kid said:

well i have a 6 weekold auto cbd 30-1 plant and its just like a photo would be, i think ill contact the company and see what can be done about it. thanx

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Autos should flower under 24/0 cycle. If they don't, they are not autos (breeder didn't test them well enough).

Cappuchino said:

Autos should flower under 24/0 cycle. If they don't, they are not autos (breeder didn't test them well enough).

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right, there from seedsman, doctor seedsman 30-1 auto, i must admit i had an idea that it wasn't autos thanx ill get on to them

The answer comes down to your lighting. Is it powerful enough to get their DLI in that 18 hours? If so, sure 18/6 is fine. If you don't have the power to push the DLI in that 18 hours, consider using the 20/4 schedule. If you're using some crap lighting, 24/0 might not be a bad idea.

ive got good lighting had them under a 260 watt mh for the first 2 weeks then a 400 mh after that,. thanx for the reply

twentyeight.threefive said:

This just isn't true. Autoflowers will flower based on genetics regardless of light schedule.

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correct....they would flower with 2 hours of light per day, but obviously they would be rather stunted in size and slow to mature.

I would recommend to the OP @Srirachagrower to use either 20/4 or 24/0

ISK said:

correct....they would flower with 2 hours of light per day, but obviously they would be rather stunted in size and slow to mature.

I would recommend to the OP @Srirachagrower to use either 20/4 or 24/0

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appreciate that! now i'm using 18/6. is it possible to just change it? she's just 2 weeks old

Srirachagrower said:

appreciate that! now i'm using 18/6. is it possible to just change it? she's just 2 weeks old

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yes....you can change anytime to any cycle you want