hello guys.after hours of research and studying , i've decided to grow my own ladies.The system is DWC ,i have 2 lamps HPS 400W and MH 400W and under them one northernlight and one northern light haze#5.I'm on the 4 week , i use GHE flora series and the water is RO.I don't use call mag because the guy from the store i bought the fertilizers told me that for RO water i had to use "grow micro for soft water".PH is 5.8 to 6.2 , temperature 27C by day and 23C at night humidity at 60% and ppm 450.I 'm kind of confused with these spots that appeared on my leaves.Does anybody have any idea what that might be?
Thanks in advance
Thanks in advance
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