Yup, I am adding epsom salt at the proper rate.
The full dose based on the recommended schedule above of Jacks 3 2 1 is roughly:
Part A (5-12-26) - 3.6g/gallon
Part B (15-0-0) - Cal Nitrate - 2.4g/gallon
Epsom Salt - 1.1g/gallon
This above schedule, which is their recommended 100% strength, has been getting me roughly 995PPM (2EC) with my 49PPM tap water. It is a little less than what they are saying my PPM levels should be above (assuming their 1200PPM chart includes a higher tap water).
With that said, I was historically using this schedule from week 5 (when I turned on my aqua valve) to week 8, when I started to see some nitrogen toxicity / signs of overwater or nute burn.. At around week 8 (beginning of flowering), I decided to lower my strength from 100% to around 50%, after turning off my aquavalve for 48 hours, thinking this would help stabilize my plants (also heard that it was not good to go above 1EC at this point).
This is when I felt the big problems arose as once I fed at 50% strength, I felt my plants were growing more yellow than before, particularly the top areas, which were the newer flowering sites. That is when I thought I may have made the mistake of either putting them into shock by dropping so far down or that these plants simply needed more nutes. The reactions of each plants were different too.
1.) The Amnesia Auto (left) which was my best plant and doing ok before I dropped nutes, just became more and more yellow and eventually leaves started dying and falling off at a much quicker rate.
2.) The Think Different (middle) actually became my best plant and has grown and not been as affected (until recently where I see minor nitrogen toxicity).
3.) The Think Different (right) which was stunted by a week, early in germination, due to overwatering, just started curling. All leaves were just curling upwards and turning brown. New sites were also starting yellow.
This all was confusing as I was not sure if this was nute burn/lockout or that I should have been feeding more and stuck with my schedule as if you saw my plants on week 7/8, it was not that bad (
my grow diary) or (
autoflower journal). Week 9/10 is when it started to turn bad. I also increased my nutes each week from 50% to 65% as I figured by week 9/10, they should be able to handle 65% strength (1.3EC+).
Either way, I did something wrong during week 8/9 and has turned my plants into a critical mess.
Wondering if this could help diagnosis.
Thanks