Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Adjusting PPM
Dyus123
started grow question 4y ago
How does a grower, adjust PPM if it's off?
Open
Feeding. Deficiences
1 like
Answer
Grey_Wolf
answered grow question 4y ago
@Dyus123
the diary says you are using soil? so if you have given too high a feed/ppm then use plain PH'd water to lower it if you underfed then remix the nutrients to a slightly higher ppm the next time they require watering .
likes
Complain
Hempy_The_Kid
answered grow question 4y ago
Add nutrients to bring ppm up or add ph water to bring it down.
likes
Complain
Similar Grow Questions
Solved
Yucreepin
Nutes over/under?
What deficiency / overfeeding? Thought it was just appearance new growth but it’s been getting worse. Newer growth is yellowish green from the centre of the leaves out (but the ridge lines of the leaf are still green) Leaves are clawed and folded less flat than lower leaves
Week 8
Feeding. Deficiences
6y ago
3
3
Solved
Steace
Is it a copper deficiency? I use RO(no deionization) since the start, I'm at week 8. the last watering, I used tap water that was under the sun for 16 hours for that reason, since I can't see until a bit if it does something I was wondering... Thank you
Week 8
Leaves. Edges burnt
Feeding. Deficiences
5y ago
3
1
Solved
CaptainKirk1188
Fixing deficiency/toxicity/overwatering issues
How do I properly identify and remedy these issues with my babies?
Week 12
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
7
10
Solved
WelshGrower
Not growing
Hi any help will be much appreciated..I am growing in coco/perlite mix however I'm unsure why they have stopped growing or are growing but very very slowly..could it be that I have not fed any nutrients at all to this grow?? Please advise
Week 2
Feeding. Deficiences
6y ago
4
5
Solved
Northern_bc_bud
Hi All Can anyone tell me what the issue it is a very pale green compared to the rest is it a deficiency or nute burn? Its Northern Lights Auto Possible nitrogen deficiency?
Week 3
Feeding. Deficiences
5y ago
2
3
Solved
420Baddie
Deficiency
First Time Grower, please help me understand what is going on with her? Just watered her today. It’s been 6 day before that.
Feeding. Deficiences
4y ago
2
2
Solved
Fonzy21
Calcio e magnesio?
Mi sapete dare qualche informazione su cosa stia accadendo e come risolvere? Le foglie giovani stanno iniziando a schiarirsi sulle estremità delle foglie..
Week 4
Feeding. Deficiences
6y ago
1
1
Solved
Michael1234
deficiency???
is it a nutrient deficiency ???
Week 4
Feeding. Deficiences
5y ago
1
2
Solved
Gottajiboo
Hot weather, not enough super soil, Leaves Yellowing???????? Need Help. Am I losing these beauties?????
HELP.. Temps in our tents got into high 90s, working on cooling. I thought we started to have nutrient depletion of the super soil as there is only about 2.5 to 3 gallons of sohum in each pot. Now I started feeding calmag, FF big bloom, FF Tiger Bloom. Leaves still yellowing????
Week 7
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
2
Solved
Gemini_Grow
Manganese deficiency or rust?
Could it be manganese deficiency or rust? Few upper leaves are affected this ways showing some brown dots.. Could it be due to a PH fluctuation I had recently? Need some help
Leaves. Color - Dark-brown
Feeding. Deficiences
6y ago
1
2
Solved
GhettoStyle
problems with clones!
Friends, tell me what's wrong with the plant! I don't understand it's under-feeding or over-feeding! At first I thought it was a cal-mag deficiency, then I saw a purple stem and thought it was a phosphorus deficiency! Now I don't know what it is anymore! at the very beginning it
Leaves. Color - Yellow
Setup. Clones
Feeding. Deficiences
4y ago
1
7
Solved
urbanbud
early stage spots developing on young plants - nut burn, deficiency or ?? seeking opinions/experience cheers growbuds
howdy growers, seeking advice re: spots developing? did recently up feed strength but only to about 2/3rd label and would appreciate experience on whether this is more likely nut burn/particular deficiency/ph/??? pics and even more detail included in my entries, cheerss
Week 4
Leaves. Other
Plant. Other
Feeding. Deficiences
6y ago
7
6
Solved
mck372
mid-flower yellow leaves
Hello! I'm growing my first non-auto, a SkittleZ, it got quite small and the leaves are yellowish,I'd like to know what mistakes I made and what I can do to help her Mars Hydro TS1000 and only BioBizz nutrients. Temp is around 18C at night and 25/26C during the day, 40% hum
Leaves. Color - Yellow
Feeding. Deficiences
1y ago
2
6
Solved
GrowmieDeLaStreet
Maintaining the soil pH
I give pH'ed water, never more than 800ppm and I still always end up with lockouts. I used to not give water untill runoff but now I do. What to do after testing the runoff? It's currently at 6.0 even after a flush with 7.2. Ask many questions I need to know what I'm doing wrong.
Other. General questions
Setup. Substrates
Feeding. Deficiences
5y ago
1
Solved
Ziooomoooleeek
Niedobór
Czy to oznaka niedoboru czy coś jest nie tak? Rośliny wydają się być zdrowe, ale jest początkujący jeszcze się uczę. Naprawdę dziękuję wam za wszystkie odpowiedzi Bracia :)
Feeding. Deficiences
5y ago
2
2
Solved
OldFish13
Deficiency or overdose?
i think it looks like cal-mag def... what can you tell me about it ? i am talking about red dots on the leaves
Week 16
Leaves. Color - Red or pink
Feeding. Deficiences
6y ago
1
1
Solved
VividGreen
New growth gets lighter in color
Looking at the pictures you can see new growth on both plants is getting lighter in color each day. I’m thinking nitrogen, maybe? Complete day by day photos are in the diary. Thanks
Week 5
Feeding. Deficiences
4y ago
7
12
Solved
Dormando
Unknown Deficiency symptoms on leaves
Pics from old plant a few weeks in flowering started showing some deficiency symptoms on leaves. I could not diagnose the issue, but circling back to it so that I do not repeat the same mistake this time.
Week 8
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
7
Solved
ajglover217
should this train wreck plant be so lanky?
any suggestions on getting the lanky one back on track?
Week 5
Leaves. Curl down
Plant. Spaces between nodes
Feeding. Deficiences
6y ago
2
2
Solved
Student_of_Science
Cal mag ??
Should the cal mag be half as well ? And how long does it get added?
Week 3
Feeding. Deficiences
4y ago
1
1