First Autoflower Grow

BAD WEEK! I thought my pH meter broke, or just needed to be calibrated again. I was wrong and fed two of my plants a nutrient solution of 4.11pH for three times in a row! They were hit pretty hard :( I lost about a third of my leaves, and the rest turned yellow pretty quickly. I did a large flush on the 17th with Fox Farms Sledgehammer, I've never used it before but it's been a couple of days and the two plants seem happy enough! Other than that, all the other ladies seem to be doing well :) I'm curious about the Black Lemon, as it is still completely green and not showing any signs of purple at all. I will experiment and try dropping the temperature another 5 degrees and see if it has any effect.