Purple color on beginning of new growth

Last pic is overall canopy. wife checking for males. Started with 38, down to 19 so far

Thanks for any help

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Which soil ? Pic of the bag would help.
And from your last pic they still appear too wet.
Are the pots light when you water ?

And the ph tester is a definite need item.

In the 1 gal my lil ones that age take about 3-4 days to dry out enough to water again.
And I water to runoff each time.

:v::call_me_hand: