I am running 4 gal autopots on 50 Coco/Perlite with Jacks 321
@80% strength (800PPM), up from 650PPM previous week. Have been seeing curling and leaves dying although the bottom area is green.
Res/Tray@ 6PH/800PPM. Coco slurry
@6PH/800PPM.
Temp 81, RH 55%
Should I flush?