Jacks 321 coir grow issues

[Coir-or-die]

Second grow using jacks 321, growing under led in straight coir and am hand watering using ro water(18ppm after filters).I keep running into weird leaf issues/deficiencies. I am not adding any calmag due to being told jacks 321 has ample in it for coir (is this wrong) I am using the ratio on thier website 3.79 of part a, 2.52 part b and 0.99 Epson salt. Started the seedling out at 125 ppm ph 5.85 then walked them up by 100 ppm slowly until im at 400 ppm now with a ph of 5.85 ro 6.0. Is my ratio off for coir?? Strain is zamaldelica by ace seeds and strawberry cough

 

[Creeperpark]

Your RO water is too soft and you need to add some more cal-mag. Make sure your plants have a good breeze over the canopy for the best calcium transpiration and absorption. .

 

[Wingnutt]

Adding more cal-mag could definitely help. Blackstrap molasses works well. Also look like humidity could be on the low side? I wouldn't worry too much if its just on the lower leaves.

 

[chronosync]

what size container?

 

[StickyBandit]

Crop is probably finished by now