In this week, everything is fine and she is really grow. I fed her nutrients at Day 15 but I made a mistake that’s forgot to change Rapid Start ratio 😁. I added CO2 bag to my tent at her 19 day but her new leaves seem to be curling next day.Actually, she is ill 🤒. At her 21 day, I flushed grow medium with 5.8 ph water and fed Cal - Mag and nutrients with 539 ppm.