Stacking good, showing that the nitrogen is consumed a lot now.
I forgot to mention that i am using the biotabs starter set since the 11 L pot, before it was just pure lightmix and plain tap water which rested a night in a bucket !
I am using the bio pk as well but i lower the dosage. I learned from past grows that the 10 ml they recommend is too heavy for some strains.
Hope you enjoy the grow as much as i do so far !