First grow Northern Light automatic

Day 51 | Still trying to recover from what i think it's a deficiency. Bought an EC meter and found out that i was quite low with nutes considering plant stage (something like 800) so I ph 6.3 watered with more nutes (now i'm at 1150-1200): 0.4ml/L of BioBloom for some N, 1 Vertafort tablet, 1ml/L of CalMag and reintroduced Plagron Green Sensation 0.4ml/L. Except some yellowing leaves on the bottom, she looks pretty good and her main cola is fattening. Day 54 | I ph 6.3 watered with 0.5ml/L of BioBloom for some N, 1 Vertafort tablet, 1ml/L of CalMag and Plagron Green Sensation 0.5ml/L. Day 56 | She's getting thirsty, watered again with 0.5ml/L of BioBloom for some N, 1 Vertafort tablet, 1ml/L of CalMag and Plagron Green Sensation 0.5ml/L., 2,2L with small runoff