Please help ppms started off 6000 now 3000

[401BIGSM0KE]

I've grown in coco past couple years with not many problems now im using promix hp I got 24 flowering plants now 3 r locking out cuz of high ppm. I was having no problems everything was lush n green looked to be stacking up nice only was feeding between 1800 2200 ppm buds are nice n frosty week 4 in past 6 days all plants have started showing serious signs of nute burn so tonight I flushed half with 2 1/2 gallons of water n it went down to 3000 ppms from last run off. So should I just keep giving them plan water till run off is fixed? Also I've been feeding ever watering thinking it was like coco cuz it's hp same idea as coco.
I'm using advance nutes in promix if I'm only feeding at 2000 ppm why was it at 6000 ppm run off other. Night?? My ph was 5.2 even tho my ppm was 6000 ppm run off?
Should my other 20 plants be alright what should I do... last grow ran same strains just about same feed but in coco n only had like 2 lock out at end
Don't understand what's going on here

Sorry for the rant just need help not tryna lose a crop everything has been going perfect smh
Gonna go take pics rn

 

[OverGrown]

easy peasy Bro water only every second time so feed/water/feed/water..... if you seed fade feed/feed/water/feed/feed/water.... and only use enough ppm so you don't see fade if you see any tip burn reduce next feed 25%. Jmho

 

[401BIGSM0KE]

How do I post pics

 

[401BIGSM0KE]

Nvm

 

[401BIGSM0KE]

There's 2 flower rooms .. so do I keep feeding plan water till I get ppm back to at least 1200ppm

 

[401BIGSM0KE]

@Waira hey been like two years sense I've used this site u helped me out before so I figured I'd tag u if u could help it would be appreciated

 

[401BIGSM0KE]

I've flushed once so far how grow in promix it seemed like run off ph was 5.2 when I started n 6000 pm tried flushing once half of my plants I flushed down to like 3000 I think they just started showing def sense past 3 or4 days

 

[401BIGSM0KE]

I'm using promix for first time n idk what's going on been running into a lot of problems this grow as soon as flower hit.. are my plants gonna be alright 3 have curled up n started locking out the other 20 have just tips burning .. can ugive them plain water two times in a row or will that make it lock out

 

[Waira]

...hey bud-- you've been feeding waaaay too heavy, and not doing enough run-off like you would with coco as well,... Promix, being peat based, doesn't drain and breath as well as coco either,... where did you read/learn to run such overly high ppm's? More is NOT better, and cumulative inputs will catch up fast with build-up's,... most folks aren't going over 1200-ish, at peak bloom, on sizable plants,.. with constant feeding, you should reduce ppm's a great deal since inputs are constant,... what volume pots are these? For that severe of build-up, you'll need to flush at least 3x the pot volume to purge the excess out, checking pH and run-off as you do,.. a flushing agent will help remove particle bound up nutes as well as free dissolved ones,... with peat, you don't have the CEC concerns that coco has, so no worries about plain water here,... what you have here is toxicity related defc., along with nute burn,.. too much of certain nutrient elements will interfere with the uptake of others,.. pH needs to be in low 6's for peat as well,...

 

[401BIGSM0KE]

The plants were taking it good I just gotta ppm meter cuz other one broke I was measuring ppms a week ago n I was at 1200 ish idk if other wasn't reading properly signs have only occurs in past 5 days and advance nutes site in just following there feeding.chart