Any insight would be great. I’ve been getting these rust spots on half my veg that are only 2 weeks old. I use Athena, start off with 250 ppm of calmag and aside from that I follow their schedule. Just can’t figure out what else this could be.
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It could be a mag or cal deficiency.Light: Viparspectra P2000, Viparspectra P1500, Viparspectra XS2000, KingLed 1500
Medium: organic, Fafard perlite, Fafard Urban Garden organic mix, Organic compost shrimps.
Nutrients: Alaskan Fish, Advanced Nutrients Big Bud, Advanced Nutrients Ancient Earth, Advanced Nutrients Sensi Cal Mag Xtra
Full auto grow
Grow room : 8X12X10, 2 industrial fans, 1 dehumidifier, 1 Vivosun carbon filter & controller
12 Wild Thailand Ryder from WOS
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I believe you have a PH problem. Probably too low but you need to check your runoff water. This results in a calcium deficiency. If you are using cal-mag, then the low PH is prohibiting the plant from absorbing the calcium.Current Grow: 1 GG4, 2 Hot Cakes, 1 Sweet Gelato Autos
3 gallon cloth pots
30"x30"x60" tent
Spider Farmer SE3000
Coco Pearlite mix
GH Trio, Silica, Cal-Mag
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