Please help me save my plants ! Necrosis ?

they're overfed and overfeeding can cause lockout, which causes other problem. Too much of one nutrient means it can't get the others it needs. Flush with h2o @6.2pH. (you're in soil right?)

ease your way back into feeding--start half or quarter strength and work your way back up. how long do you want to go?

Yesyes3000 said:

So why are some in favor of useing the cal-mag and some are NOT in favor of useing cal mag ?? The water I flush with should have what in it ? Also what PH should the flush water be ? Are the leaves looking the way they are from PH problems? Nite lock out ? To much phosphorus? No enough cal/ mag?

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Calmag as made by most hydro nutrient companies comes in a 3/1 Cal/mag ratio where a 6/1 ratio is the ideal ratio and what is recommended by the majority of agronomists.
When you are trying to flush excess salts in agriculture it's never done with plain water, gypsum is often used and fulvic acid also. Flushing with 1/4 or even 1/8 strength nutrients is much more effective than flushing with straight water

In my opinion I’d flush the medium with water ph’ed to 5.8-6.2 basically what chadfly111 was saying, and cut off the bloom nutes for now and just water with plain ph’ed water for now, then start introducing Calmag and just the tiger bloom nutrients. I ran into a similar problem my first grow to much nutrients, after I flushed it things got better in about 2-3 weeks, they were kinda stunted but grew out of it.
I see that you’re in about mid flower so your plants are really trying to focus on just producing buds. The damage will be permanent though and maybe even stunted. But idk it’s just a guess, an educated one. Lol
I’m no pro but I suggest you listen to chadfly.

And Dr.J

Goodluck.

Thank you ! Very much. When I posted (twice) about this I was really thinking that I would get a lot of responses that consisted of people saying “ oh yes I’ve had this and I did....to fix it”. I’m happy with the advice and began flushing with 6.0 ph water with a tad bit of calmag. I will post some pics later of what they look like now. It’s so hard to tell what’s different but I belive they have swelled a bit more. Luckily my pots are not that big so flushing was easier than what I’ve done in the past. I did screw up this grow by allowing them to stretch as much as they did. It happened so fast and I should have put a scrog net down and tucked everything but next time. Majority of these are lemon og kush which is notorious for its stretch apparently. I love the aroma that it gives but it requires a lot of training. Anybody know how long white widow takes and lemon og kush takes to flower.? I plan on monitoring hairs and trichomes as they change color but would be nice to here some numbers to refer to ? Also if anyone has pics of their white widow grow and lemon og kush grow ?
Thank you for everything ! Very grateful for the assistance.