First Grow

Yeah I think that could be deficient of N. Those leaves at one pic are so bright... In comment u mentioned "using only maxibloom.. cal mag and Silica every 2 days to runoff" So, my first thought was - lack of N. Are u using some fertil. for vege stage? Flowering plant still needs N to develop healthy leaves. And, of course, low amount of N in plant, makes more issues with other nutri's. I would use one full dosage of vege fertil. + half of bloom. fert. Once. Then I would keep feeding with half dose of vege. fertil. + full dose of bloom. fertil. Overall, thats not looking bad! But, its only my opinion. I can be wrong, cause no complete info's about used fertilizers so its hard to say.

Hello my friend, the cause for this deficiency is a nutrient lockout due overfeeding. It is good that you ask this question early before real damage is done. Just cut the nutrients back to 70% from what you currently give. And the pH is a bit low for this phase of the grow. Try to keep it stable around 6.2