Deficiency or toxicity? This is in ffhf/coco/Perlite/ewc ph'd @ 6.5 ff nute trio +Calimagic. feed and water once a week in 5gal pot led 14" above plant. My diary tells the rest. 1/4tsp Calimagic 1/2tsp of trio 2lts water.
Solved
Leaves. Color - Dark-brown