The Grow Awards 2026 🏆 
how to know how much ppm a cannabis plant can handle
Brent_60sstarted grow question 3y ago
how to know how much a cannabis plant can handle of ppm and how to find out
Solved
Feeding. Other
likes
Chucky324answered grow question 3y ago
Hello. In the back of my Advanced Nutrient catalogue it has charts that are up to 2000 ppm. I usually do 800 to 1000 ppm in veg and 1200 to 1400 ppm in flowering. At 1600 I usually get some leaf tip burning and huge buds.. Chuck.
Similar Grow Questions
Solved
bazz00
Ph soluzione nutriente aumenta da solo?Ho sbagliato qualcosa nel misurare il ph e anche quantità nutrienti(era 0.05 ho messo 0.5)sembra si siano riprese ma ho rallentato tutto😔 domanda:è normale che il ph della soluzione preparata aumenti da solo? Era 6.4 oggi 7.2🤨Feeding. Other
5y ago
1
2
Solved
Edenganj
Nutes question. (They’re listed in diary)I am finding it really difficult to feed. I can’t seem to get the right mixture of things, and is it okay to mix it all in one gallon. What ppm should I reach for? Do I adjust the waters pH prior to adding nutrients assuming it’ll increase after adding nutes.Feeding. Other
5y ago
1
1
Solved
AcidTundra
Stunted Gorilla Auto from RQSany thoughts on why it stayed Dwarf sized.i had a rootball issue.i went very low nutes i think and weak lights in seedling stage and a bitt weak 200w cfl in veg before switching to 600 hps.even the stem didnt really get any "girth".Read somewhere gorillas needed alot of nutes?6y ago
10
5
Solved
jacarezin
Yellowing Leave's Tips, overfert?They seem to be feeling overfert as the leaves tips are turning yellow, but i am not sure about what to do... i think I should now water without fertilizers but I don't know how long before I can feed them again, any help would be appreciated.5y ago
5
5
Solved
Jfmart420
Crazy PH drop and High ECSo I mixed a ½ gal solution but adjusted it by adding water to ⅔ gal to bring down the initial EC/ppm testing at around 1400/700. I ph to 5.8 and fed, the runoff was shy of 20% testing at PH 2.65 EC 3940 ppm 1970 Why and how to fix?Week 2
Feeding. Other
5y ago
2
Solved
Growador
Nuts burnQuestion for you guys, i kept in mind that autoflowers didn't need as much nuts as classic feminized seeds. I began to check the ppm today and questioned myself. Could i add much more pk if the ppms are still good for the flowering stage ? It means that i don't risk nuts burn ?Week 8
Feeding. Other
5y ago
3
Solved
Smartie
Spiral LST vs Topdressing/mulchSpiral LST vs topdressing/mulch.. I planned on training like shown in picture, just not sure how this will work out with 1" of mulch and a monthly topdressing with all the pegs/wires, might get tricky. Thought about bending all sec branches to the outside vs 1out 1in?? Cheers5y ago
4
4
Solved
AutoGOAT
No ph meterNo ph meter, use less nutrients with tap water?thanks:)Week 2
Feeding. Other
6y ago
5
2
Solved
PlanTings
Spraying plantsI have been feeding the plant with some extra Canna BOOST in the spray and applying directly to all plants and not just the leaves. I have noticed that the tent started smelling less of weed and more like the product. Am I doing it wrong?Is it losing quality? can buds be sprayed?Week 8
Feeding. Other
5y ago
1
1
Solved
BudsRus
Early FlushingIs it okay to add nuts after flushing for almost a week? Last few weeks of floweringFeeding. Other
5y ago
2
Solved
BooBoosHotBoxCornGrow
Carboflush or no?Hey guys so I’m gonna plant the seed soon, for my nutes I got the hen hydro flora set and cal mag, I know this is way ahead of time but I was looking into the lotus carboflush for flushing for the end, is this worth it to get? ThanksWeek 1
Feeding. Other
6y ago
2
Solved
masterofsmeagol
How much does the fox farm trio affect pH and how much pH up (or down) would be needed for correct pH of a 7.0 gallon water.Anybody here grow outdoors in soil and use fox farm products? I was wondering if someone could approximate how much 2tbsp big bloom, 2 grow big, 1 tiger bloom would lower a neutral 7.0 gallon of water. I have drops but it's hard to see after adding bb. No meter. No money 4 one.Week 22
Feeding. Other
4y ago
2
3
Solved
Vequm
When to start feeding cal/magHey everyone!
Just a quick question, when do i start feeding my girls cal/mag? Plants are about 11 days old, planted in biobizz all-mix, showing no signs of deficiencies. Haven't started feeding them nutrients yet. Just pH balanced water.
Thank you and happy growing everyone 🍀Week 2
Feeding. Other
3y ago
3
3
Solved
Mikewithgreenthumbs420
Bruce banner Fem, has new growth on top plant but bottom half of plants took a beating should I keep going or start my last 2 seeds nodes have leaves nowBruce banner should I restart these girls have two seeds left my first 3 weeks where going good than after week 3 was all down hill was using miracle gro switched to mother earth I think I over feed nutes bad had no ppm meter have one now, should i pluck bad leaves offFeeding. Deficiences
Feeding. Other
Germination. Substrate
5y ago
1
4