Question about using H3ad formula

[geralds]

Hi guys, I’ve since switched to GH using the H3ad formula (6:9)
What I’m unsure about is I’ve read to give this formula to freshly rooted clones and seedlings. However I’ve been feeding this formula (800ppm) to young plants and they look unhappy. Slightly droopy, yellowish leaves, purple stems.
I’ve tested runoff and it’s close to slightly higher than what’s going in. Also I feel like every time I panic I’ll shut down two lights out of my four 315w and within 2 days they are praying to the lights. Could 4 315w lights in a 8x8 be too much?

Are you guys that are using this method diluting for smaller plants or just running straight 6:9 on everything?
Any words of advice would be great. Thanks

 

[Anthem]

PPMs out being higher than PPMs in equals lockout. Looks like you are in coco and that might be a little too high of PPM's. Recommend flushing with water and cal mag at 3 times pot size allow to full drain and feed with water, cal mag and a light feeding of say 300 PPMs for 3 days.

 

[geralds]

It’s fresh coco though I transplanted last week. They could already be locked out?