Started to see some micro spotting on the tip of the middle leaf. Wasn't sure if it was light or nute burn so I tested the run off. Running 3400 PPM with a 1100 PPM feed, whoops. Clearly been under-watering my coco. After 30 gal of flush juice (5 gal of water + some molasses + 2.5 ml orca juice brewed with an overpowered air pump for 2 hours) i'm back down to 1600 PPM run off. Will run another 10 gal of flush juice in between reg waterings tomorrow, up my watering duration and keep an eye on it. Im proud of my plants for looking so happy in such a high PPM environment.