not sure wtf is going on here

I would give them a flush with phed water and check your runoff ph and ppms.

BudMuncher said:

I would give them a flush with phed water and check your runoff ph and ppms.

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that and watetr source and ppm would help.also how many times a day you get fresh air exchanged.

One picture = one word and for me that word is scorched.

try some Sea Green and/or Rootementary on that plant.
http://www.beneficialbiologics.com/

Rootementary is very high in nitrogen so since ur in flower i would just stick to some sea green. It helps plants that are suffering from different types of shock - including a nute overdose. I feel that its a quick fix, like superthrive, but not as potent or dangerous in flower.

thanks for input,I started running an RO system hoping it's my well water has something in it messing with me,not all plants are doing this and when I feed I mix a big batch and use it all but my well water is 150-200ppm

if your well has alot of calcium like most of that 150-200 ppm and your adding calmag that could be the problem.should see some change going to ro but your runoff would tell some good info.when i really want to know runoff numbers i water the plant till it just starts to drain off the bottom and then let it sit for 10-15 mins. then i give a normal feed of 700ppm bloom and collect the runoff after it starts to flow real good maybe after the first liter of water comes out. just did this on a plant and my runoff came out at 1800 ppm so it was very high seeing how i was adding 700 so i just continue to pour on that 700 untill my numbers dropped to 720-730 and called it good.next water i gave 300 ppm just calmag and the plant looks much better now.@Seamaiden has a slurry method that does sound more accurate but i never tried it.gl

if your in promix, feeding straight RO water every other watering will drop your ph and cause lockout...water ith no ions in it can fluctuate ph very easy, and when you add it to a medium like peat that has a natural ph of 3.5-4 or something like that, plus the nutes we use are acidic...your garanteed to have ph drop..if you were in a more ph neutral medium this problem would not be so bad, and if you were in soil i dont think you would have this problem at all...

imo, depending on the PH of your well water, i would flush using the well water, then mix a batch of nutes using well water...get it to a total of 700-800 ppm(1.4-1.6 EC), water till you see a good amount of runoff, this should reset the ph in the meium as well as give adequate food for the plant to rebuild on.

ime promix is better to be fertilized every watering...i water @ 600-850ppm every watering in pure promix...i give a plain water about once every 10-14 days just to make sure salt does not build up...and every once in a while depending on strain i still tend to over feed..

edit-to be clear when i do feed, due t my situation i can not water till run off...the only time i water till runoff, is that once every 10-14 days with pure water just to get rid of excess salts that may have built up, its a precaution thing

ok plants are doing better still look like shit but leaves are standing up and they are growing again.I flushed all plants with straight well water with ph around 8 maybe 15gal a plant then used 5gal per plant of ro water at ph of 6,about 4 days and used GH nutes at 600ppm hopefully got it under control.What I am not getting is all my girls do great in veg under t-5 s and it's when I go into flower room under HPS that I start to have trouble.is it because of the intensity of light?Also what soil would be good to use if i were to change?I tried coco but had troubles also

Ok, you're not the first person who's having these sorts of issues. I hope Capulator doesn't mind yet another thread of his being stickied, cuz I just put glue all over that bitch.

Read this: https://www.thcfarmer.com/community...m-affects-nutrient-use-in-plant-tissue.58621/