leaves going lighter green?

got 8 plants all same strain.6 weeks old,2 weeks into flower.
all were dark green leaves then 2 weeks ago the leaves on 4 of them went light green.
so 4 are all dark green leaves and 4 are dark bottom half and light top half.
using coco and canna a+b
they look healthy no yellowing droop or drop?
any advise?

no advise needed i dont think that should be a prob

It could be if the edges start browning. But light greens are good if you can keep them that way. Fuckin-a that avatar is hot. It makes me nervous even seeing pretty girls like that. where you'd get that pic? 420girls dot com or something?

cool! thx

hoagtech said:

It could be if the edges start browning. But light greens are good if you can keep them that way. Fuckin-a that avatar is hot. It makes me nervous even seeing pretty girls like that. where you'd get that pic? 420girls dot com or something?

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tell me not, blow some smoke right here baby

check ph and maybe add a little N if your mix doesnt have any.