Nutrition defect

Hi. I have a nutrition defect. I'm in soil. End of week one Bloom. The runoff was about EC 1.2-1.5 (600-700)PPM. PH 6.2-6.3 I have the same problem on more flowers. I think it's Calcium, but iI'm not sure. What do you think?


What do you usually do when you get nutrition defects. Do you stop giving nutrition completely and only give the flower what it is missing+ Water, Or do you give a mild nutrition + whats missing?

/Stig

I'm seeing nute burn... is your oh meter calibrated correctly?

Thanks for fast reply. Yes thay are EC and PH Pen from Blue Lab. If there where nut burn, shouldn"t be on the upper leaves as well. The leaf tip turning yellow?