Progressive rust/yellow few weeks into flower

[i love herb]

This particular problem has happened with several strains, and a couple completely different grows. I feel like ive tried everything to fix this problem.


I also use ph adjust water to 6.5

nutes per gallon, every watering:
Pure blend pro bloom 30ml
hygrozyme 8ml
sweet leaf 10ml
cal mag 5ml
liquid karma 10ml


ive used potasium pased PH up and also aquarium ph up
ive flushed, with clearex and 3x the pot size
ive reduced ferts
ive added ferts
changed ferts

i use reverse osmosis water http://www.glacierwater.com/quality.htm


Lights 600 watt hps about 8" from the top
temps are never above 81, usually 79 by the end of the 12 hour cycle

strains
GH white rhino, GH church, and cali purple kush


plenty of fans to blow, its not a heat issue, the humidty is around 35%



like i said perviously this has happened my last grow, it progressively gets worse throughout the flowering stage. beautiful dark green vigorous plants through veg stage


oddly enough everytime i flush these girls they ph goes up, regardless of the ph water i put in.

for example flushed with 5 gallons of 6.5 water and clearex

run off was 6.9

flushed with another gallon of 6.5 clearex water, ph is 7.0

flushed with 2 gallons of 6.2 clearex water and ph goes up to 7.1


this has happened in the past with just regular water, so i dont think its the clearex. im really baffled by this.



im completely drained from this, ive done everything in my power, researched trial and error and im stumped.

PLEASE HELP.


Church 3-4 weeks into flower, oldest plant










Purple Kush, at least a week behind church










White rhino, youngest by at least 2 weeks














i have lots of pics, different angles, highest resolution you can imagine


any request of pics or information can be granted..


NEED HELP BADLY AND FAST


thanks

 

[Prop215Fiend]

Hey bro,

I'm far from an expert, but I have a similar problem posted underneath yours "818 Kush - Low pH?"

But it seems like your runoff pH is a tad high, typically you should be in the 6.5-6.8 pH range for soil, and 5.8-6.2 for soilless?

As far as what to do to reduce pH, I have no clue. Actually, I might. I used PBP Grow and it dropped from tap water pH from 7.2 to 6.2. Perhaps this might help?

Good luck and let me know what u find.

 

[i love herb]

i use pbp grow and bloom


when i put my full nute regimen in my ph drops from 6.5-7 to 3.5. I have to put a decent amount of ph up to get it to proper range.


anyone have any suggestions on what to do?

 

[MynameStitch]

how often do you water man>? You use all those nutrients everytime you water??
what soil mixture are you using? looks like you have lockout issues then it fixed itself and what you are seeing is the end result after it ate the affected areas.

How often are you watering?

 

[i love herb]

once a week, feeding the above regimen every water.

fox farm happy frog



what schedule and strength should i feed?

 

[MynameStitch]

get rid of hydrozyme and iquid karma; both have vitamins that can build up easily in cannabis.

Use the pro, cal mag use sweet leaf every 2 weeks; this is only a flavor enhacer.

Use calmag and pro use 1 tsp per gallon of water; you also need a nitrogen suppliment for a bit.

 

[inflorescence]

Hygrozyme doesn't have any bad "vitamins" that will build up.
just alternate it's use.
Your feeding a WHOLE LOT. It's dropping your pH. Your chasing it with pH up. It's too much flucuation. K as a pH up is not so stable.
This whole over fert/flush/pH up is stressing your plant.
Pick a regime and stickt to it, even if it's not ideal the plant will be happier with the consistnecy of not having to try to adapt to the miriad of things your throwing at it.
In other words, one grow may not be ideal but at least it's consistant, next grow is tweaked a bit but still consistant, etc.
If you try to vary your grow too much during the course of your grow it's that stress which will show the flucuating pH.

 

[Rosy Cheeks]

Listen to what the guy says:

This particular problem has happened with several strains, and a couple completely different grows. I feel like ive tried everything to fix this problem.

like i said perviously this has happened my last grow, it progressively gets worse throughout the flowering stage. beautiful dark green vigorous plants through veg stage


oddly enough everytime i flush these girls they ph goes up, regardless of the ph water i put in.

for example flushed with 5 gallons of 6.5 water and clearex

run off was 6.9

flushed with another gallon of 6.5 clearex water, ph is 7.0

flushed with 2 gallons of 6.2 clearex water and ph goes up to 7.1

The damage done to the plants looks like some kind of burn.

It is a reoccurring problem, and he's aware of/measuring/adjusting ph.

The problems described indicate a high degree of impurities in the water.

My preliminary guess is high sodium levels, but only a water analysis can decide that.

Try using filtered water or mineral water to see if it has any effect on your problems.

 

[i love herb]

VERY good points in here, i like them.


i have 3 5 gallons jugs i use for water, i fill them up with this
http://www.glacierwater.com/quality.htm

 

[i love herb]

Hygrozyme doesn't have any bad "vitamins" that will build up.
just alternate it's use.
Your feeding a WHOLE LOT. It's dropping your pH. Your chasing it with pH up. It's too much flucuation. K as a pH up is not so stable.
This whole over fert/flush/pH up is stressing your plant.
Pick a regime and stickt to it, even if it's not ideal the plant will be happier with the consistnecy of not having to try to adapt to the miriad of things your throwing at it.
In other words, one grow may not be ideal but at least it's consistant, next grow is tweaked a bit but still consistant, etc.
If you try to vary your grow too much during the course of your grow it's that stress which will show the flucuating pH.

are you suggesting i feed, then next water (7 days later) just straight up water?

if not, what are you saying?


and do i flush these girls till they are the desired ph? even if it takes 20+ gallons like it did last time (3 gal pot)

 

[MynameStitch]

I told him he had burning issues but just did not say he had burning; I told him to stop using so much which is why I told him to use only a certain amount and stop feeding every watering.

Yes I would flush her a bit and feed weekly every 7 days and if you have to water in between then just plain water.

 

[i love herb]

they dry up and ready for the next water in 7 days, thus id be doing what im doing now


feeding every water, every 7 days

 

[MynameStitch]

Your stiull feeding to much; to much as meaning the amount you put in a gallon of water..... ease up on the amount not how often ... still feed weekly but do not use no where near as much.... 1 or 2 tsp per gallon of water is plenty.

You also need to get your plant some micronutrients and feed that every 2 weeks.

 

[i love herb]

i have hydroplex, is that micronutrients?


the bottle says 30ml pure blend pro bloom every watering, thats what i give.
8ml hygrozyme
10ml sweet leaf
5ml cal mag
10ml liquid karma
ph adjust to 6.5


what do i cut out? reduce? frequency?

 

[FRIENDinDEED]

well i am growing SSH a teh moment and what i have learned is that , they love that water pH'ed at 6.0 or 5.5. and this is from me starting witha tap water pH of 8.0.

maybe you should pH down some more a lil' at a time and check for the differences between waterings. my problems started with my oldest flowering plants


here are pics a the first site of :



they went through alot of changes until i got them "dialed in", now they are doing a shyt load better:

i've always gone by the old adage that cannnabis plants are acid loving plants, sometimes we get so caughtup into taking care of them and feeding them that we forget they are, although medicinal, weeds, and they love thier acid or so i have found out from experience

 

[MynameStitch]

I gave you info on what to use and how much in my posts in this thread...... listening to the back of a container is not a wise choice unless it's directly made for cannabis.

That is for other plants cannabis burns a lot easier than most plants and do not require the strong amount other plants need.

 

[i love herb]

5-10 ml per gallon from 30


oh boy.


this is very mild formula, are you familiar with the botanicare products?

 

[MynameStitch]

I pretty much know many products; listening on the back of the container is a no no. I know many people with agree to this....... you start out light and work your way up and if you have issues stop flush and use the amount you were before they had issues..... only feed weekly. These are not tomato plants or common plants they are very different from other plants.

 

[i love herb]

im going to reduce feeding drastically, you guys were very helpful in diagnosing. I appreciate the replies.



I flushed one of the girls last night and could not get the ph lower than 7.0. I flushed 20 gallons of 6.0 water trough. (5 gal bag)

Then the last 2 gallons i put through was the mild formula of nutes.


Do you think it should be back on track or am i still going to be screwed?

 

[MynameStitch]

you should not have fed them nutrients after flushing I would of waited a week before doing so but how much did you use after you fed them?

Yes it does flush out the nutrients in the soil but you want them to recover a bit before feeding them again......,because the plant has enough stored nutrients to last at least a week before feeding again; so your plant will not go into deficiency mode untill you are able to feed it a bit later.