Slower progress of one plant compared to the other

Hey can anyone give advice I’m a beginner here are 2 cheese autos and they were the same size 3days ago the are 40days old they are getting canna A-B I gave them PK13/14 3days ago and the plant on the left is progressing great but the other seems behind they get 24/0 light and I also give them super thrive I had some problems with that plant in veg it was jaundice looking but I have been giving it ph water at about 6.0 6.3 it’s nice and green now but still it’s a lighter shade of green to the other one will it catch up to the other one in it’s own time or could it be a problem moulding it back.

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Even tho they the same strain, they do grow different sometimes. Just like kids, same parents but different size kids.
No need to worry
Have u checked ur ph run off?

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They look good! Idt that size difference is anything to worry about. If that plant continues to stay that size in a week or two then I’d start to question it.

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What is your soil? What are your feed and runoff pH and PPMs? Everything needs to be controlled and it sound like something is off between the two.

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Is one more centered under the light then the other?