I fought the deficiency and won. After realizing last week that I had some serious calcium or magnesium deficiency, I have been hand watering a Herc/Mag-Amped pH 6.4 water in, along with the drip tape on 75%.
The browning and yellowing has stopped both, up and down the plant. So now just 2 more weeks... Gonna be a nail biter!
Looking forward to following this grow! I'm about to pop 2 cream & cheese seeds tonight for my first grow ever. I'm also doing living soil in 15 gallon pots. The blu mat system sounds nice, I might have to look into that!