First grow week 6 from seed, starting LST

5x5 tent, daytime temps 80 degrees hovering around 40 percent humidity. Organic amended soil, 9 liter pots watering with reverse osmosis water. I’m wondering if I should put organic cal mag in the water, I see some purple stem striping on almost all of them and I’m not sure if it’s a deficiency. I believe they’ve all been topped now and I’m starting lst on a few of them. Let me know what you think and any advice76E18DD8-65E5-4C2E-B8B3-EDB24976F1D2.jpegE8BE238F-614E-44C1-B78E-9335AC432E5D.jpeg9B91159C-0670-4B0F-A7D1-10ED20530948.jpeg5310AA5D-8B71-4C9D-A175-DBF1E4824531.jpeg81EA752A-BE3B-44CB-B4AE-0B20A1D19667.jpeg
 

Wattzzup

Well-Known Member
Organic amended soil shouldn’t need cal mag. You do look short on mag. But I would just use Epsom. Looking good so far.
 
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