Sorry, fellas been out for a while. I switched the microbe brew to the old beneficial bacteria. I also threw in some humic acid. I an using the recipe for success as well. with beneficial bacteria you use less nutrients.
Believe me,i know running ppms below 150 Is low but the plants are telling me they are receiving enough nutes. Ppms drop around10-20 ppm per day and I add more. The issue is the spotting.
Looks like calcium deficiency or ph spotting..
Could be root damage like aero said. But on all 36 plants, ages 3 weeks to 6 weeks? The evidence suggests that it's either a deficiency, fungus, or the microbe brew.
since all the plants are nicely green and the ph it's rising and the ppms are falling I think that this issue is not a defficiency. I know some will say that the plants ppm are too low but my first post stated that I already bumped the ppm up to 250,450,650, at each level the ppms rose.
After switching the microbe brew and adding the humic acid with technaflora's recipe for success I have noticed that the ph is stabilizing better, and the leaves and stalks have grown significantly larger. It it's too soon to call it but the spots seemed to have stopped. I will update you further. Thanks for all you help. Good day to you.