These are northern lights and I went to 12/12 on 6/1. 21 days into flower (pistils on 7/8th day).
I am using Fox Farm Trio (big bloom, grow big and tiger bloom). They are in amended fox farm ocean forest soil (compost, coco, limestone, bone meal, blood meal, and worm casting). The first 50% nutrient application was on 6/7. The second application (85% dose) was 6/15. I feed every other watering. Today would have been a nutrient day. However, I noticed some leaf tips that were slightly bleached so my alarm went off. I raised the light 3" to 25 and dialed back my photo boost strips to 50% (was 75-80%). Decision time, full or partial nutrients or play safe and water only. Having burned up a couple of autos my last grow, I decided on water only and check the runoff. One other thing contributed to this decision. Golly they look great (remember Gomer Pyle), good color and really healthy so maxing nutrients was not a priority.
I did PH and PPM each of the four plants. PH ranged between 6.87 and 6.99 which is basically what original soil PH was. The PPM range was a little more 1067: 1508; 1719 and 2319 compared to original slurry of 2007.
Here is part of my ledger where I track PH, PPM, EC and also temp / humdity for VPD (not included)
Based on the reading did I over react given PH is stable with no apparent salt buildup?
I honestly have no clue why the PPM varies so much.
Will their flowering capacity be adversely affected?
The next watering will be in 3 or 4 days, use full scheduled nutrients then - Yes / No?
Am I reading this correctly? Missing something?