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Back to Grow Questions
Optimal pH for Vermic/Peat/Casting mix?
Overgrotho
started grow question 6y ago
Seeing as I am using 1/3 vermiculite 1/3 peat and 1/3 worm casting for these seedlings, should the optimal pH of the substrate be 6, 6.3, or 6.5?
Solved
Week 3
Feeding. Deficiences
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blendmedmedman
answered grow question 6y ago
you want right around 6.3 as this is the happy spot. hope this helps
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Selected By The Grower
MangoDudu
answered grow question 6y ago
I think your mix is not well done, so much vermiculite will ever overwater your plants, like u can see they are not full healty and not for ph problem. however 5.8 soiless is the right range
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GMSgrows
answered grow question 6y ago
Are you using soil at all? If it is a soiless mix then 5.5 to 6 ph in veg and 6.0 to 6.5 in flower. Cheers
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Similar Grow Questions
Solved
Parky955
New grower
Nutrient burn or deficiency? Or light burn? Fed on schedule. 1st week water 2nd bio grow 0.5ml/1l. 3rd week bio bloom 0.5ml, grow 0.5/1l not sure if its lacking nitrogen
Feeding. Deficiences
4y ago
1
6
Solved
THERMICDESERT11
What’s wrong with my plant? Root rot?
Growing organically with happy frog mixed with a super soil concentrate. I water them with spring bottle water, ph at 7.7. Recharge every 10 days. Top dress 2-2-2 dry amendments. Plant looks like it has root rot or potassium deficiency. Please tell me what y’all think
Feeding. Deficiences
5y ago
2
2
Solved
Hydronaut
250 PPM? - Week 6 - Autoflower - GH Trio
Fresh res. New growth (cola pic) leaves are scorched a bit. Result of tox from 2+ weeks ago, still hot? My PH/PPM equilibrium is 250pmm w/ 0ppm H20. If I follow this rule (I never done), she would max out in 350ish PPM. Anyone follow the dance thru harvest? GH Trio nutes.
Week 6
Feeding. Deficiences
4y ago
3
3
Solved
fiatchd
Leaf problems
I think I did use too much fertilizers, whats happening here? https://growdiaries.com/diaries/180523-grow-journal-by-fiatchd
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
3y ago
2
5
Solved
born_it_all
Wich kind of deficiency is that? I attach photo to explain more easily
Hi guys how are you? I have a simple question, it's my 1st grow so I want to know what is that deficiency please. I'm on 3rd week and I gave them 0,5ml/l of bio grow and 0,5ml/l of calmag from biobizz the last watering when I saw this littles brown points of one old leaves. Tks
Feeding. Deficiences
4y ago
1
1
Solved
minigroww
Continuing calmag deficiency
What I think is a calmag deficiency started about 10 days ago. At first I thought it was too low PH (6.0 - 6.1), so I corrected that, but no luck. Then I started adding biobizz calmag, still no luck. It seems that the deficiencies are picking up speed again. Any ideas appreciated
Leaves. Veins - yellow between
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
2
4
Solved
ELPIRATA
HELP!!
Buenas! Tengo una duda enorme sobre esta pequeña "#3 Auto Lemon Kix"; Es 1 de 3 de la misma raza presentes en el cultivo, pero a diferencia de sus 2 hermanas, esta se ha cultivado en maceta de 7 litros(cometi un error al agregar misma cantidad de agua que al resto; Se salvará ?
Week 1
Buds. Not fattening
Plant. Too short
Feeding. Deficiences
6y ago
1
Solved
Gamabunta
Deficiency Problems
I don't know why they suddenly show so much deficiency. Do I need to readjust the PH level or add more nutrients Could it be because of the stronger lamp? I switched from GC 4 to GC 9 from Greenception about 1 week ago. Which corresponds to a change from 250w to 400w NDL. I am ve
Week 6
Feeding. Deficiences
6y ago
4
4
Solved
Murrod9106
Nutrients
Can anyone tell me if my ladies are lacking nitrogen
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
2
2
Solved
Lazydaze428
Yellow leaf or normal
Please take a look at my just turned 4week old auto critical purple grown in 3 gallon fabric pots filled with Stonington blend soil.my question is how do my leaves look.I put 2 teaspoons of Stonington plant food and 1 teaspoons of bat guano 3 days ago
Feeding. Deficiences
5y ago
1
2
Solved
CharlieilBrown
Rust-colored margins and dots. I would like to go back to fertilizing but I am afraid that it is an excess of potassium
Outdoor in the vegetative phase, southern climate. Soil is Biobizz light mix. So far I have only fertilized 2 times with the tripack ph perfect Advanced Nutrients. These rust-colored burns are present on almost all older leaves. Enlighten me please 🙏
Leaves. Tips - Burnt
Feeding. Deficiences
4y ago
2
3
Solved
THC_Hazeman
Deficiency maybe?
Hey, a couple of her leaves start becoming slightly lighter in color, plus they show these kind of marks. It's some kind of deficiency?
Week 3
Feeding. Deficiences
4y ago
2
6
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 now
Bruce 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 off
Feeding. Deficiences
Feeding. Other
Germination. Substrate
5y ago
1
4
Solved
PeterSage
K deficiency?
in the last pictures you can see what to me look like an early deficiency of K. Since she is in the first stages of flowering I would say that's the case, reading the literature online i noticed a lot of similarities, what do you think?
Week 12
Feeding. Deficiences
4y ago
2
2
Solved
ELPIRATA
SE SALVARA? HELP!!!
Buenas! Tengo una duda enorme sobre esta pequeña "#3 Auto Lemon Kix"; Es 1 de 3 de la misma raza presentes en el cultivo, pero a diferencia de sus 2 hermanas, esta se ha cultivado en maceta de 7 litros(cometi un error al agregar misma cantidad de agua que al resto; Se salvará ?
Week 1
Buds. Not fattening
Plant. Too short
Feeding. Deficiences
6y ago
3
2
Solved
DojaMon
leaves yellowing
northern lights auto in week 2 of flower: leaves started yellowing from the bottom. it’s been going on for about two weeks, and now the leaves around the middle are yellowing too, and some of the yellowed leaves have brown spots in the middle. 8L pot in coco, fed lucas formula
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
Solved
Snailcocktail
Calmag
When should i start watering calmag? In my last grow all my leaves startet ro crumble and looked nasty because i had a calmag deficiency, i then had to buy it and s lot of damage was already done. So when is a good point to start watering it and at what dosage should i start
Feeding. Deficiences
3y ago
4
Solved
Hansgrube
Big FAIL try not to laugh - fed my ladies with WC cleaner
Try not to laugh. I accidentally fed one my ladies with a WC cleaner. https://ibb.co/v1MNNcM 1. I noticed it 45 min later, leaves began yellow tips 2. I took it off the dwc system and flushed it. Do you think shell survive, let her have few days in phd water or not?
Feeding. Chemical composition
Feeding. Deficiences
Feeding. Other
6y ago
7
8
Solved
TschupZ
Possible lockout, what could've caused it, all 3 get the same water & feeding
Hey, i'm new as grower and really glad about any tipps I got some rusty spots + pale looking, tested the runoff and need help reconstructing on what went wrong IN: 2l Osmosis + 0,6ml calmag + ph down 7 - 6,5 -Ph: 6,5 -ec: 540 OUT: ca 200ml -Ph: 5 -ec: 630
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
Feeding. Deficiences
1y ago
5
4
Solved
Coughy
Purple patches - ok or need to fix?
Only on a couple branches, I don’t know if this is magnesium deficiency, phosphorus deficiency or sulphur or WTF.
Feeding. Deficiences
6y ago
3
4