Day 31 (x1 Girl Scout Cookie, x1 Blue Dream)
The spots on the BD fan leaves look worse, but I don't see much spreading. Their are a few smaller leaves that are showing a few spots on the GSC as well too. Not really sure, it's easy to chase your tail when it comes to something like this. I browse the forums and sometimes you can be diagnosed with 3-4 different things in one thread. I'd like to get this nailed down for the next grow. Here's where I'm at.
Rust spots starting on fan leaves. Fan leaves have dark reddish/purple stems. Rest of stems are green. Here's my possible issues, i'm not leaning towards a deficiency so it's probably 3 4 or 5.
1) cal-mag deficiency *I feed 1tsp cal-mag per gallon of water
2) P/K deficiency *1/4tsp of Tiger bloom starting at day 21
3) Soil/pH issue *I know FFOF is hot, this is what I suspect is my issue
4) Soil too compact *I didn't add any extra perilite to my FFOF
5) heat/ventilation issue *No true intake, exhaust vents into same room as tent.