haawkstarted grow question a year ago I have problem again with lumatek zeus 600w pro 2.9. I have a height of 60 cm and 100% power. Run off ec is 1200 uS/ and ph 6.3.It seems as if there is a lack of calcium and magnesium, but I add it during daily watering, and the problem is only with the LED lights
Solved
Plant. Stem - Red or purple