Week 3 25-26 days. I don’t quite water til runoff honestly. Plain pH-ed water in between feedings. It looked well. There were no signs of yellowing. ‘Twas til then that I suspected them with slow growth. That’s when I did a slurry and it was out of range and it was only til then that yellowing leaves were present. Culprit #1 is king’s salt buildup since I don’t water til runoff. Culprit #2 is from migs with my pH pen.