Hello Cilum69, I don't know what nutrients you are using but when I look at week 4 in your diary then I can see that you know how to feed. The buds from the plants behind this grow look great! So I do think that you are feeding the right nutrients and that you are feeding the right amounts. But your pH is a bit too high and this caused a nutrient lockout for the plant. To solve the nutrient lockout you want to flush the soil with 2 times the pot volume in water with the right amount of nutrients and the right pH. Let your soil dry till the top inch of the soil is completely dry. And after you can continue watering and feeding like you did but make sure that you keep your pH within the right range!