Mephisto Sour Crack Coco & Jacks 321

Girls are stacking nicely. Oldest girl is about a couple of weeks out, throwing in some nice early fade and buds are purpling. Had no idea Sour Crack could turn purple. I have hopes the younger one stacks more but its not yielding as much as the older one so far. Had to do a little flush because saw some tip burns and run off EC was way out of whack. My guess is I had too much buildup of salts.