There is too much nitrogen (see the dark green leaves?). As for the pictures, ir looks like potassium defficiency, as you think, due to lack of nutes or pH I can't say, since You give us no adicional info.
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Purple Punch 2
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7Indoor
Room Type
Defoliation
weeks 9
Grow Conditions
Week 9
Flowering
78.74
cm
inch
Height
20 hrs
Light Schedule
5+ conditions after
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Grow Technique Usage
Defoliation
Technique
Commented by
DrDank224 years ago
Moving along, still some nute issues but bud production doesn't really seem affected.
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Grow Questions
DrDank22started grow question 4 years ago
What nute issues does it look like? Calmag? Or K defiency?
Solved
Leaves. Veins - yellow between
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MrBlocc420answered grow question 4 years ago
Looks to be a magnesium deficiency, A light green or yellow coloring will begin to show on the veins and edges of the lower & older leaves – this is one of the classic signs of cannabis magnesium deficiency. You may also see red stems.
Magnesium is a mobile nutrient, which means that the plant can move it from old leaves to new leaves
The edges of the leaves may become yellow or bright green and may start feeling crispy to the touch. This crispiness around the edges is different from nutrient burn, which does not lighten the margins inside the leaves.
Hope that helps
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Athoscommentedweek 94 years ago
DrDank22commented4 years ago
@@Athos, my leaves always look that shade of green
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Buddha2commentedweek 124 years ago
Congratulations on your harvest! Looks great. Enjoy! 👍
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Trixxcommentedweek 124 years ago
Good luck and happy grows 💪
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FrostyBlaze420commentedweek 124 years ago
Plants are lookn killer bro congrats. Im down n subbed 2 watch them finish out gud luck.
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DrDank22commentedweek 94 years ago
pH may have been a problem too, just realized one of my meters was definitely all messed up. Recalibrated both and one was definitely way off so tossing that one and going with the functioning one. So hopefully that helps.
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