Hi fam, I’m not sure if the color variation is f...

Hi @diamondtrichomes! Well my guess is that both plants are not fully healthy, pale one is too-pale, dark one is too-dark. Both plants are showing different reactions to the same problem, because they might have different phenotypes, and they have different container sizes. On the pale one I can see burnt tips and yellowing+spots between the veins, this tells us that the plant was overfed in the past and might suffer from manganese deficiency, but this could also come from Zinc or Sulfur deficiency, at this stage it's hard to tell. However, looking at the amount of nutrients you gave in the last weeks, a real deficiency is not likely, that's why I'm thinking of a nutrients-lockout. Indeed, by giving much nutrients in your waterings AND rich compost at the same time, you may have created a salt-buildup in your coco, and now the plants cannot absorb nutrients anymore. In this scenario I would try to remove the compost mix, flush them for 3-4 days with plain pH'd water and re-calibrate the pH-pen, then back to nutrients with lower doses and see how it goes. Hope this helps, I'll be around, keep us up-to-date and happy growing 👊

Hi diamond ! The color variation is not a pheno variations ( it could be but not in your case) , I would say is a a slight nutrients def & a Nitrogen def in particular cuz the lack of N leads a lighter green color : You'r in soil and your Ph range is good , you'r now in flowering stage so you should maybe up your ec to 1.2 for the light green one & low it a bit on your dark green one. I hope it will help you for the best 👊😁

A light green color is much healthier than dark leaves. Dark foliage is a sign of nitrogen overdose. That been said, those yellow veins, look like sulfur deficiency, which is quite rare, so you might have some micronutrients lockout. You mention that you used rich compost and on top of that you are using several liquid nutes, I would do a light flush and stop feeding before trying to add anything, see how the plants react, then decide. Does it get better?