Northern Lights Auto Brown Spotting on Fan Leaves

[d_miller_20]

Brown spotting started about 4 weeks ago. Started adding cal mag at 3 tsp per 1.5L. I did this every watering for a week then dropped to every other. This seemed to slow if but last 4 days has came back strong and is taking over all fan leaves. I also fed fox farms tiger bloom but that was after this started to occur. Any suggestions? Will plant mature enough to harvest? Been flower for 3-4 weeks. Northern Lights Auto

 

[d_miller_20]

I’m using fox farms Ocean Forrest. RH is currently between 45-55% with temps around 75 degrees. Light cycle is set at 12-12

 

[jdog22]

spots are a cal def i think
ok now ive read your post. so it seems like you had a cal def and youve corrected it by not meaning to over do it, so calmag is fed once a week i think and youve pushed it so its not a def anymore but a toxicity problem now

 

[d_miller_20]

spots are a cal def i think
ok now ive read your post. so it seems like you had a cal def and youve corrected it by not meaning to over do it, so calmag is fed once a week i think and youve pushed it so its not a def anymore but a toxicity problem now

It looks the exact same in the leaf. Does a deficiency and toxicity look the same?

 

[jdog22]

i mean the cal toxicity and def look fairly similar. but nitrogen is different. youll get yellowing leafs starting from the lower branches and toxicity is dark green leafs curling down at the tips.