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I'm hoping to get some ideas about what could be causing these brownish spots on my plants. It started on the lower leaves but has spread up in quick fashion. I'm using Jacks 321, 3 for the Jacks, one for Epsom and 2 for the Cal nit. I grow in coco so they get a feeding once a day. My humidity...

This is my first grow and I'm on week 4. They are autoflowers. I'm using a 70/30 coco perlite mix. I drain to waste 1x a day until I get about ~12% run off or so. I use jacks 20 20 20 and lotus cal mag (4-0-0). It's 11% cal and 3% mag. Anyways my leaves started turning yellow last week, at the...

The other night I noticed the humidity in my tent was at 84%. This was a day after I turned my LED light up to 50% (previously at 35). I turned my dehumidifier down to 55%, when it was previously at 60 and not pulling anything in. I went to bed and woke up to find my tent at 44%. The rockwools...