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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
likes
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
Verdos
Nutrient burn/not enough nutes or normal?
Should I be concerned about the dying leaves near the bottom? I first thought it was nutrient burn but I’m now doubting myself!
Week 7
Feeding. Deficiences
4y ago
1
1
Solved
born_it_all
Deficiency or excess of nutrient?
Hi guys, I need help please, i'm noob. What kind of deficiency/excess nutrient is that? Thanks a lot
Week 5
Leaves. Color - Dark-brown
Feeding. Deficiences
4y ago
4
3
Solved
secaboy
Deficiency
Is this the signs of a nitrogen deficiency or am I not feeding enough Canna A&B? I'm coming up to end of week 4 of flowering.
Feeding. Deficiences
4y ago
1
1
Solved
FoxGrow
Autos reacting to All-Mix: Slight nitrogen overload?
Pheno one showed very "leathery", weak, hanging leaves of dark green. Same time the fungus gnats had a run and the population doubled. After second LST also the stronger plant showed those signs on the younger upper leaves. Also curled down a little. Slight nitrogen toxicity?
Week 3
Leaves. Curl down
Feeding. Deficiences
2y ago
2
1
Solved
SOBIESLAW
Diagnosis help pls
Any help on what this is being caused of? I upped the feed a tiny bit yesterday since the plant is almost ready for transition. But then today i noticed this leaf, kind of in the middle of the plant. Not on the top or bottom. Thx in advance for input 🌱
Week 4
Feeding. Deficiences
Feeding. Other
5y ago
3
2
Solved
santope
Hello again I make resarche about my problems....i diggin and diggin an i not 100% sure but the symptoms were exacly like it sulfur deficiency I check a milion of photos i read a lot of articles.an this is my opinion can somebody help me with one more time thanks
Feeding. Deficiences
6y ago
1
Solved
Basementganja
PH drifting below 4, by middle of flower. Soilless(Agro A5-HP), watered when dry
Middle of Flower - Runoff PH has drifted below 4.. detected during the first watering of 2.5 gallons (10% runoff) 6gallon pot. Previously watered/fed with 1 gallon of 1tsp/gal GHE Floranova Grow(in veg), then Bloom (after week 2 flower). Input PH has always been between 6-6.5
Week 9
Feeding. Deficiences
6y ago
4
1
Solved
jeannoTapin
Leaves yellowing, tips and edge burning and strange dot patterns
Hello, D57 (of 63/70 days) Is it over or under feeding? it's been 2 weeks leaves are yellowing et 5 days some dot pattern burns appear? Been giving full dose of biobizz for a few weeks. What could be the root cause?
Week 9
Leaves. Edges burnt
Leaves. Other
Feeding. Deficiences
9mo ago
12
9
Solved
JoNzE
deformed
Can any1 tell me wats goin on with this 4 week seedling , deformed leafs and spots on lower canopy..?
Leaves. Other
Feeding. Deficiences
5y ago
1
1
Solved
KCduzit
Week 6 lockouts, deficiencies and abundance. Advice Wanted (remo nutrients)
Start of week 6 I see What I think are potassium deficiencies & nitrogen abundances @ same time in most of my plants. I assumed I had lockouts due to ppm/ph issues and did not to raise nute levels & flushed at end of week 5. Any remo growers or with similar Situation any advice?
Week 5
Feeding. Schedule
Feeding. Deficiences
6y ago
4
4
Solved
SlamFM
Which Deficiency(ies)?
After looking at some pictures and reverse image searching some of the attached pictures. I think it maybe both phosphorus and potassium deficiency.
Week 10
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Deficiences
3y ago
6
1
Solved
CHILLING_RACOONS
NEED HELP! CRUCIAL PHASE
Excess or deficiency? I'm in the crucial phase of buds development, some leaves are getting brown and seems to be burned but I don't know if it is a burn or a deficiency.. On 17/01 I gave 2ml/lt npk 4-8-8 and npk 1.7-0-3 1ml/lt? What should I do? Could someone explain? Thank you❤️
Week 10
Leaves. Edges burnt
Other. General questions
Feeding. Deficiences
3y ago
3
3
Solved
BudmanFlyingjoint
Strange discoloration
The plant is becoming less green, more yellow, dark green/blue, and the tip seems necrotic. She received a little more light intensity (TS1000 at 50cm, 25%dim to 50%dim) when she was repotted on the final DWC. T.A. (Growing on FeedChart) was used to create the nutrient solution.
Leaves. Veins - yellow between
Leaves. Color - Dark-purple
Feeding. Deficiences
2y ago
1
3
Solved
Michael1234
too many nutrients?
I am asking for advice, is it possible that my plants got too much fertilizer. I watered them in the fourth week, I gave them 0.5ml per liter once CalMag, Bio-Bloom, TopMax, Fish-mix,Biobizz then during the 7th week 1 ml per liter CalMag, Bio-Bloom, TopMax, Fish-mix,Biobizz
Week 6
Feeding. Chemical composition
Feeding. Deficiences
5y ago
2
4
Solved
Dubdad
Leaf colour help. Hi all. I think there may be a problem with the new growth on my plants. They are 10 days into flowering 12/12. They look like they are too light. They veins are much darker giving them a stripey look. I had the light very close to them when it started. ?
Week 7
Leaves. Veins - yellow between
Leaves. Color - Pale
Feeding. Deficiences
6y ago
1
5
Solved
MyStery21
PLEASEE HELP, SHES GETTING WORSE.
My GG#4 still sick, i been flushing her with bottled water, i even transplant her to a bigger pot, this problm start after i use a wrong mix of GeneralHydrop.. then the leaves starts to look like this and die, every day its getting worse and worse, i don't know what to do anymore
Leaves. Other
Feeding. Deficiences
6y ago
1
1
Solved
WeedIsMyLifestyle
Have some trouble with one plant. Anyone know what it is ? Feeding with Plagron coco AB 3.5 ml + pk booster 0.3-0.5 ml for 1l ppm in 1000-1100 ppm out 800-900 pH in 5.5 pH out 6.5
Week 10
Feeding. Deficiences
5y ago
3
3
Solved
MrGreen92
Why is this deficiency or toxicity spreading so fast!?
Had a light case of what was believed to be calcium deficiency. Ph, EC and ppm all seemed normal for run off and I've halved my nutes but kept a higher dose of CalMag going. Didn't water them last night now it looks even worse, what should I do and will the end product be ruined?
Week 9
Feeding. Deficiences
6y ago
5
4
Solved
FreshCoastOrganics
Deficiency?
Hey everybody, I’ve never really dealt with deficiencies in autos as most of my experience is with growing photos outdoors. Does this look like a magnesium deficiency? These just appeared over night on just two of my larger growing white widow autos. Please let me know, thanks!
Leaves. Edges burnt
Other. Other
Feeding. Deficiences
6y ago
3
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