Leaves discolouration

It's a manifestation of deficiency, my friend. But the deficiency of one substance is caused by an overdose of another. As the plant matures, it changes its appetite... it likes one type of food at first, and then it changes its taste towards another food) metaphorically speaking) you're giving too many supplements, it filled up a bit earlier than it should have, and now you see the consequences of slight overfeeding. Don't worry, it's not fatal for the plant, and it will continue to develop normally. Just listen to the advice, I'll repeat it once more: Make the soil pH 6.4 for the flowering stage. As for the nutrients, you have a pretty high concentration of nitrogen in the plant, so I would recommend reducing supplement A and B by half! Make it 2ml/l each! pk - 1ml/l Good luck! 😇✊