What is that?

your autos are not flowering by themselves. You need to change your lighting to 12 on / 12off. make sure it stays absolutely dark in the 12 off. Also, it is likely to get at least 2-2.5 times as tall as it is now, measure that out and have a plan. Probably involving tying it over, unless you have lots of room to put your lights up, hard to see in the pic.

Growdict said:

your autos are not flowering by themselves

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Not sure what you think the auto part means but no they do not need a 12/12 to flower and the OP should keep doing 20/4. They look great for the setup.

buyyouabeer said:

Not sure what you think the auto part means but no they do not need a 12/12 to flower and the OP should keep doing 20/4. They look great for the setup.

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sometimes the gene for the auto ruderalis doesnt come through and it will behave like a photo. A true auto should have already been half way into flowering by 9 weeks from sprout.

Growdict said:

sometimes the gene for the auto ruderalis doesnt come through and it will behave like a photo. A true auto should have already been half way into flowering by 9 weeks from sprout.

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Ok yeah I missed the 9 week part, I take that back and agree.