Dying leaves week 6-7-8

Coco in 1-2-3 gal fabric pots. Vertical 1000 with opposing 600 hps. Botanicare pro with the add on's also substituted floranova bloom but maintained the same ph and ppm since I'm familiar with both. Was ph'ing every thing at 5.8-6.0 until a week ago and admit to not fully understanding the cal is better absorbed at 6.2..and now vary it. Trying to recover from that deficiency this late gives me slim to none. I admit to not flushing but twice. But when I used RO I always supplemented 5cc/gal unless I used 140-170ppm tap. I get more than 20% runoff most of the time tho. keeping the ppm to 7-800 maximum and mix a half dose on occasion. This consumed one plant.... Every separate bud lost the fans/smaller leaves but the bud itself remains untouched. it's like a slow-mo disaster. The leaves show with a definitive line of dead and live tissue. The dead part is friable and falls apart easily. It progresses through the blades slowly and some to the stem then it easily falls off with a pluck. not strain specific. Same is appearing in clones nearing maturity at 6 weeks. All strains from Dutch passion and Bulk Seed Co, Barneys.

Wrong forum?? Dammit rollitup

Looking at your pics from your previous post and these possibly N tox, the clawing is not massive but they are so dark. Nute burn tips ect. As I said in your PM I'm not positive as I have not come across most problems I real life and these thing vary from strain to strain.
It requires better knowledge than mine so @pinner420 and @since1991 , you guys have a vast array of experience. Hope you can help this dude out better than I can. Plus I always like a lesson from either of you.

coreywebster said:

Looking at your pics from your previous post and these possibly N tox, the clawing is not massive but they are so dark. Nute burn tips ect. As I said in your PM I'm not positive as I have not come across most problems I real life and these thing vary from strain to strain.
It requires better knowledge than mine so @pinner420 and @since1991 , you guys have a vast array of experience. Hope you can help this dude out better than I can. Plus I always like a lesson from either of you.

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I run coir at 5.5 ph... I've run autopots for years and this is my findings.. ec at 1.2 including boosters etc. Aka 600ppm .5 scale... I've also taken to plant amp <calcium > mag amp <magnesium> as there is no additional N. Botanicare is solid. I'm trying not to convert you to cutting edge lol..

On those burnt leaves..what exactly.arw the being fed and at what pH and EC? Iam going to go out on a limb here and say accumulated salt build up in the medium over time from not enoigh runoff....throwing the mediums balance all out of whack. But ive been wrong before.

Check the ph and ppm of the run off. The crispy leaf tips are defiantly toxicity of something