The Grow Awards 2026 🏆 
How to measure PPM
Shagrathanswered grow question 6y ago
Well best amd probably only way is to have an ec meter. Ppm's are converted numbers from ec thats measured and differing from manufacturer the ec is multiplied by 500,600 or 700 to get the PPM's
Similar Grow Questions
Solved
Grow4Releaf
See Alot of nutrients are used by some, looking for insight on TPS-ONETps-one Nutrients were all ive used during my first grow. But I assume I could have gone harder. Is their anyone that uses tps-one that can suggest anything I can add to my feed program for my new grow? Did some upgrading with lights too so I can push alil harder aswell.Other. General questions
Plant. Other
Feeding. Chemical composition
3y ago
4
3
Solved
PitteJasKorels
Runoff pH still climbing!My runoff PH keeps climbing despite lowering water pH. Plants look great but have red stems.
Is it possible that the bottom of my fabric pots are saturated with excess Calcium and Diatomaceous Earth? Thus, raising my runoff PH. Soil meter reads 6.8 though 🤔Week 12
Feeding. Chemical composition
3y ago
8
4
Solved
GR0WER
How to low ph?I can't low my ph no metter what I do. Ewery time I feed my plants I make ph6 solution, but ph sensors still showing ph7. It's already ~10 waterings and no result.
I tried to flush one of my pots (puted it in a bucket with ph5.8 water 3 times for 5 minutes) and still nothing.Week 5
Feeding. Chemical composition
3y ago
5
11
Solved
Mikewithgreenthumbs420
General hydroponics what does these bottles do and should I feed this stuff both my clones pictures at bottom never used stuff like thisWhat and when should I start feeding plants not sure what this stuff is but a friend gave them too me Should I start feeding plants in veg state or flower and help we be much appreciated thank you! And the calimagic can I starting feeding,
clone peyote cookie might need some?Feeding. Chemical composition
Feeding. Deficiences
5y ago
1
Solved
MrAnderson
I was always wondering if im calculating nutrient mix right.
For example:
My tap water is 350 ppm.
In late veg i should feed 800 ppm mix.
How should i mix? :
1. 350 ppm tap + 450 ppm nutes = 800 ppm mix
OR
2. 350 ppm tap + 800 ppm nutes = 1150 ppm mix
I always mixed "1" wayWeek 9
Feeding. Chemical composition
6y ago
2
1
Solved
Heelahmed7
Help regarding choosing fertilizer please helpCan i use this nutrients for growing my autoflowers does it contains all required nutrients needed for good growth of autoflower plants I'm a beginner and about to start my first grow that's why I'm asking , and also can only this will be effective in growing?Feeding. Chemical composition
6y ago
4
Solved
MiyamotoMusashi
hello growers, what do you think about alg-a-mic from bio biobizz? is it effective and how do you use it?Plant. Other
Feeding. Chemical composition
Feeding. Other
4y ago
1
2
Solved
hansgGG
Can I put Sodium Carbonate tabs in my DWC in order to soften the water?I bought GHE soft water by mistake, what is my best option for now?
Can I put Sodium Carbonate tabs in my DWC in order to soften the water?
Use the soft water formula on hard water or throw Sodium Carbonate into the mixtureOther. General questions
Feeding. Chemical composition
Feeding. Other
5y ago
1
1
Solved
Sigman
my plant is still good ??what wrong with my plant?
what nutrients i need to give them?
2 plant at 70 days
DWC and soil
ph nutreint solution 7 ppm 500 , EC 1060 us/cm
ph in reservoir DWC 6.0 ppm 450 , EC 950 us/cm
tempeature at day around 33 C at Night 27 C
light distance 6 inchLeaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Chemical composition
3y ago
2
2
Solved
hansgGG
Hi-Lyte in DWC - Possible?It might be the strangest question asked here ever. But can I put Hi-Lyte in my DWC? ( this one: https://cntr.click/4c8W03v )
Also, is there anything that is human eats or use that you can feed your girls with?
I use proper nutrients, just asking out of curiosity :)Other. General questions
Feeding. Chemical composition
5y ago
1
2
Solved
Solidmetal
How to set dwc with top feedingShould I use silica , hydrogaurd, and great white together in my nutrients solution when doing the initial set up ? Or in other words the first week of seedling being placed in the hydroton ? Im planning on using general hydroponics flora trio starting the second week.Feeding. Chemical composition
5y ago
1
Solved
greenspider
Do I need to put H202 (1/4ml per L) in with each feed (once a week) as a preventative measure against things I don't want in the rez? Am I wasting my money?Week 1
Feeding. Chemical composition
5y ago
1
1
Solved
izzy89
Is Mono Ammonia Phospate (MAP) good for cannabis?Hi friends I got some fertilizer Mono Ammonia Phospate (MAP) with N 12 and P 61 from work. It is used for agricultural crops like potatoes, wheat, grain, corn etc.. I've read it is good for root development and is also used at blooming stages...does anyone know about this stuff?Feeding. Chemical composition
4y ago
1
3
Solved
Bochica
Bionova PK 13 14Hi growers, ladies look good but I'd like to see those buds bigger so Im adding Bionova PK 13 14. Added 1ml/ lt but when I opened the bottle the solution is like water, it does have a smell but it's not dark as the other nutrients I've been using. Is it ok? Someone can confirm?TYWeek 12
Feeding. Chemical composition
3y ago
2
2
Solved
EVERYTHINGFRIEDISGOOD
PPMboth are germinate same day and same pack from ethos but have little different on PPM
-300-400 grow faster than 500-600 ppm
-PH control to 5.8 but going up everyday in 3day PH is 6.2 (PH +0.2 perday) i dont know why but try to keep it 5.8 every 3 daysWeek 1
Feeding. Chemical composition
4y ago
5
5
Solved
TimTheTerpMan
All in one Nute?Anyone know a good say, all in one nute package that I can add instead of having to measure out a ton of stuff?Week 5
Feeding. Chemical composition
6y ago
9
4
Solved
Crazy_Doofus
Products for growth and healthShould I invest in a minimum of products to stimulate the plant? For better growth and/or health...Week 3
Feeding. Chemical composition
3y ago
7
4