Yellowing leaves

Hey, buddy! 👋😇 You have a lot of nitrogen and a potassium deficiency! Grower Mr_Weeds_Autos already advised you yesterday to increase the cal/mag supplement (this supplement contains about 15% potassium). 1ml/l will be enough if you're using osmosis (soft water) or 0.5ml/l if you're using hard water. The Bio-Grow supplement has a lot of nitrogen. In week 8, you're giving it differently each week, sometimes lowering it and then increasing its concentration in watering again! You should understand that at the end of the vegetative stage, a Grow:Bloom ratio of (1:1) is acceptable, but for flowering, the ratio will be Grow:Bloom (1:3). In week 10, you increase the Grow supplement again, and at the same time, your Grow:Bloom supplement ratio is (1:2). 👆 Get the cal/mag supplement and apply it according to the hardness of your water! 😇👌 Good luck, buddy! ✊😇