Identifying deficiencies help

I am growing an unknown photoperiod strain indoors in soil. My plants are about 12 weeks old and still in veg.
Two plants have been showing signs of some nutrient deficiencies that I need help determining. I’ve included two pictures of the leaves in question and the middle pic is the concentration of nutrients in the Jack’s 20-20-20 fertilizer I’ve been feeding them weekly. I dechlorinate my tap water and pH everything I give my plants to 6.5. What do you think I need to supplement my feeding with? I appreciate any help you all can offer, thanks.

Id say Calcium for one. But your nutes are missing sulfer and Magnesium. You can add CalMag, but if you bought a trio pack it would include a base nutrient that would include everything you need

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