Help deficiency/toxicty week 5 flower.

Can anyone help i think strain is pineapple haze i have 7 in my tent 3 in scrog others not.they are all in 30l pots with soil it had slow release nutes which has caused me probs since day 1.finally got it sorted now on 1st day week 5 flower and starting to have probs again.not sure if its locked out cause the nutrs in soil is to rich or i am not feeding enough.1 of the scrog 1s has major problems and 1 of the other 1s has small leaves and is a lighter colour.as far as the other 4 go they seem ok but are fading from the leaf tip inwards they are under 3 600w hps and help is appreciated.will get pics of plants soon

.

A few questions to help assess your situation. How big is your tent? You mentioned 3x 600w HPS as your lights, which would be most likely too much for even a 4x4 tent.

What is your soil like? A bagged mix with added or included slow release beads?

Also, have you been fertilizing with anything?

Do you have any way to assess your soil and runoff pH or ppm concentration? The pH could help diagnose a lockout, and the runoff ppm could suggest an overdose of nutrients.

An initial suggestion would be to flush the pots with plenty of pHd water.

Can you take some pictures closer to your upper and lower leaves please? And get a pH meter!

Will get more pics tonight tent is 3m long 1.5 wide 2m high.ran to in a room half this size before with no probs so thort extra light should be ok. And yes the soil had a slow release mix which i think is causeing the problems.i have been feesing but only light fees once a week if that.ph is 6.5 so all seems ok there but my runoff with only watering has been up around 12-1800 varies bewteen the plants.i am going to flush tonight and try feed no nutes and keep a close eye on ppm runoff.what range do you think the ppm runoff should be before i look at feeding again.thus is my 1st time using a ppm meter.will get more pics tonight

.

.

I gave them all a good flush last night then flused with quater strength nutes. Tmthe weird thing is only that 1 plant on the scrog has them issues with all them spots on leafs.all the other ones look faded out but not nitrogen def.they either been locked out or ive been under feeding them big time. But even when i only water the runoff ppm is coming out bewteen 1000-1800 varies bewteen plants

Also nutes i am using is organic will get name of it tomorrow

Flush with more water I would say. Your runnoff is coming out like full strength nutes. I had to do that for my mother plant.

Hello , had the same problem , your ppm are way to high for runoff need to be about 500-700, use organic ph buffer of lemon juice if to alkaline and baking soda if to acidic , when watering , chemical based ph solutions don't work well with organic nutrients , worm casting are a great slow release nutrient additive for your soil .I find that chemical base ph buffers up and down cause nutrient lock outs in organic soil and organic nutrient feeds .give them nothing but ph`d water for a week and let them use up all the nutrients already in the soil . if they still look the same ph test your soil again , (2cups soil and 1 part water ph`d to 7.0 with either the lemon juice or baking soda) and what type of water are you using ? Not tap water I hope, has too much salt and other shit in it , I use distilled water only ,it has 0 ppm in it and allows you to totally control what you put in your water , same as flushing, distilled water only .what ever damage is done will not come back but the new growth will be a lot better looking , get a good organic cal mag mix also it must be organic , not chemical base or synthetic .I found with organics everything has to be organic not just soil and some nutrients .soil should be between 6.2 and 6.8 ph ,hope this helps , good luck !!

Yeh anoyying thing is ive got 2 difd meters that give completly diff readings

.

NOOOBIENOT said:

use organic ph buffer of lemon juice if to alkaline and baking soda if to acidic , when watering , chemical based ph solutions don't work well with organic nutrients

Click to expand...

Where to even begin with this.... I know... calling it BULLSHIT!

Somehow sodium bicarbonate is not an inorganic chemical now.