Brown spots wont stop spreading

Carbonfylter

Active Member
I dont know what to do, I feel like my plant is gonna just keep deteriorating. Brown spots showed up on lower leaves, i had some discussions with members who helped me and determined it was likely too much phosphorus, so I flushed both plants well and then gave a light feed afterward to offset flushing all the nutrients out, 1 plant is fine now but the other plant (my biggest one) seems to only be getting worse. I'm at my wits end20200906_195008.jpg20200906_195048.jpg15994366047434994225183213181239.jpg
 

Carbonfylter

Active Member
Grow info really helps
Northern lights autoflower, Ffof mix with around 30% coco, was feeding every second watering using 4 tbsp big bloom, 15ml tiger bloom, 5ml calmag plus in 1 gallon of RO water PHd to 6.3, under a giixer 1000w and a MH ts1000 at about 18 inches from canopy, temp stays typically around 75-80F RH is usually around 45-50
 
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