All variables the same, why is the one on the left look droopy? Picture doesn’t show the magnitude of the difference. Using tap water with mild nutrient mix 1:0.6:1 which took my tap water from6.6 to 5.7 PH. In a tent at 77-82 degrees at 50-70% humidity. Other than some stretching at the beginning it was the strongest one before.
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Time to transplant those things!
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Should I transplant to its final resting pot?
Do u think it can wait a week before I get a bigger tent that I ordered?
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Is it photo or auto?
With photo it won’t matter as much if you wait another week
If it’s all auto you should get it into final pot now
If you wait you are slowing it’s growth. Imo
And risking more issues as that little amount of soil will be difficult for the plant to have sufficient access to air and water, it will take good watering habits to last another week in those small cups
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Agreed with @Syndrix
For autos, go to the final home.
For photos, you can keep transplanting as much as you want up until a couple weeks before flower, it’ll just slow your grow down.
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Agreed with above! Pot 'em up! You shoukd try to shoot fir a pH of 6.5 fir soil btw if you werent aware! 
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Did she droop after watering? If so, its just her feet are a tad wet. By tomaro she should be sufficiently dry n back to normal
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