Nute deficiency or maybe to cold at Night 16 Celsius

Hi, I would also dose a bit higher. And especially now, use a fertilizer with more PK; you can keep adding N until just before the end of your plant, but they need less and less of that and more PK. Usually, it takes about 2 weeks to see something in the buds if something is going wrong until you notice it on the leaves, unless you really overdo it with too much fertilizer, then it happens faster and the damage is usually not fixable.

Hi deine Mädels haben Hunger zu wenig nitrogen in der veg Phase. Die Blätter werden weiter gelb werden aber du kannst etwas mehr Grow Dünger hinzufügen das wird es etwas aufhalten bis zur Ernte. Viel Glück 🍀.