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Back to Grow Questions
Optimal pH for Vermic/Peat/Casting mix?
Overgrotho
started grow question 5y 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 5y 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 5y 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 5y 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
THERMICDESERT11
Nitrogen deficiency, light burn? Calcium?? Which deficiency?
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. No clue what’s going on with this, thought it needed nitrogen. Top dress. Some new growth looks good
Feeding. Deficiences
5y ago
3
2
Solved
leliantu
Hello everyone, today I found some plants with these spots on the leaves. Will it be calcium deficiency? What do you think? Any help is appreciated. Regards
Week 5
Feeding. Deficiences
3y ago
5
2
Solved
Braya19
Nutrient deficiency?
Anyone have an idea what deficiency is on one of my plants?
Week 3
Feeding. Deficiences
4y ago
4
4
Solved
SkatehouseFarms
Nute burn and yellowing I don’t have a ph pen/meter please help what do I do I’m using mearth coco/perlite and dr earth dry amends and worm castings
don’t have a ph pen/meter all I have is the general hydroponics ph drops I’ve been waterin at 6.3-.6 ph. my plant is having some yellowing nute burn and I don’t know what to do please help the I’m growin in mearth coco/perlite with dr earth 4-4-4 and 3-9-4 flower dry amends help!
Week 5
Leaves. Color - Yellow
Feeding. Deficiences
Feeding. Other
4y ago
2
2
Solved
Quintus
Textbook deficiency/over feed, any advice on wich one ?
Hello guys ! I think i'm encountering a text book deficiency/over feed but can't figure out which one. This is a Frostbanger auto from 24buds in Plagron royal mix at week 4, under 150 led watt. Been giving her only some power roots & power zym with evaporated tap water :(
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
9mo ago
4
Solved
Michael1234
phosphorus and nitrogen deficiency
soil pH 7-7.5 I gave Canna Flores 1.1 ml / L, I have nothing to reduce the PH should I water it with more fertilizer or leave it until the end?
Week 8
Feeding. Deficiences
5y ago
1
3
Solved
torquesan
Need some help asap
What is wrong with her? :( I am assuming N Deficient, but I also have veeeeeeerryyyy lightly burnt tips so it is confusing to me. The lime-greening of the leaves makes me think N Deficient though.. Any thoughts? I have some new nutes on the way should be getting here tonight too.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
3
5
Solved
Fishcake
Leafs drooping down slight yellowing
Hi my plant hasn't been looking happy for a while and I just can't get her to pray 🙏 again 29/10 flushed and fed the run off was 6.55 06/11 fed 2mlgrow per litre 1.2ml cal mag per litre
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
3
1
Solved
growbert76
Is this really a potassium defiency? Any suggestions how to deal with it?
Hey Guys, need your help please. It's FD 28 and the leaves of my three White Widows show some signs of a nutrient deficiency (at least my assumption).I'm growing in living soil w/o any additional fertilizer and watering with a 7:3 mix of osmose/tap water and 0,5 ml/l CalMag.
Week 8
Leaves. Color - Dark-brown
Leaves. Color - Mottling
Feeding. Deficiences
2y ago
4
4
Solved
PTrain
Potassium deficiency?
Can you confirm this is a potassium deficiency? This happened after a flush of an amended soil (SoHum), please take into account before you answer. I do have some Down to Earth Organic White Azomite Powder OTW, just not sure how much to add yet.
Week 5
Leaves. Tips - Burnt
Feeding. Deficiences
5y ago
2
Solved
Gatterzzz
Can anyone help identify this tox/deficiency?
Week 6 I noticed that all the new growth has burnt tips I assumed this was a bit of a nitrogen toxicity problem since the leaves were all a nice dark green, no pale leaves were popping up. Also held back on feeds for a few weeks. Other forums said it’s normal but want to be sure.
Week 10
Leaves. Edges burnt
Plant. Other
Feeding. Deficiences
3y ago
8
7
Solved
WeedDude
What can causes the different color in the colas. Its the same Plant.
In the picture you can see the higher colas are light/yellowish green and the cola lower in the canopy are darker/healthier looking. more infos in my diary (1st grow) Thank you very much
Week 16
Buds. Other
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
2
Solved
JungleGym
Cal/Mag Unavailable?
What do you guys think? Runoff PH steady at 6.8 every time. Yellowing and red/purp stems caused by lack of cal/mag availability due to PH?
Week 5
Feeding. Deficiences
4y ago
3
Solved
supermegadjj
New growth twisted, pale green. Lady luck auto week 4. Temp 24c Rh 50
Hi guys I've got lady luck from penthouse seeds in 4th week in soil with perlite and Coco. Mars ta600 hanging at least 24 inches away. I feed megacrop last time was 0.5g per l (half dose ). 2 days ago she got ph water. New growth twisted, deformed and really light green.Whats up?
Leaves. Twisted
Leaves. Color - Pale
Feeding. Deficiences
5y ago
2
Solved
Mooncat
Wich deficiency did i get here?
Phosporus/Sulfur/Calcium or something else ? Pls Halpđź‘» (Pink Rozay 4W Veg. Soil is rich, feeding half of whats advertised from Producer. ) ((look up the Dairy if you wanna know every detail))
Feeding. Deficiences
4y ago
1
1
Solved
roro_204
Yellow/ Lime Leaves ????
I have 3 grow rooms. I moved all the deficiency plants to 1 room. The whole half of the plant is turning really light yellow/ Are my lights too close to the plants ? Or is my feed to low?
Leaves. Color - Yellow
Setup. Lighting
Feeding. Deficiences
4y ago
4
3
Solved
PeppaWutz
Lower leaves roll like tacos and have spots
Informations: 675 Watt LED light (1m distance to plants), 28 °C at day and 23 °C at night, 60% Humidity, EC 0.9, ph 5.7 Why did the lower leaves of my plant roll like tacos?
Week 3
Leaves. Other
Plant. Other
Feeding. Deficiences
5y ago
2
2
Solved
Strangegarlic
Soil ph trending downward
Keep having problems with my soil ph. Using ocean forest just phed water thru veg and just started using GH floratio nutes a week ago. Runoff keeps trending downwards sitting at 6.1 now. Any long term solutions to keep it happy towards 6.5? Had this issue for a few weeks.
Feeding. Deficiences
9mo ago
10
7
Solved
buddhi_coop
Nutrients
Is this a good cocktail for my next feeding? I’m having major nutrient deficiencies or something. These yellow leaves got me stressed.
Leaves. Color - Yellow
Feeding. Deficiences
Feeding. Other
5y ago
4
4
Solved
GYOweed
FOR ALL OF YOU WITH REPEATEDLY UNHEALTHY LOOKING PREHARVEST GROWS PLEASE LOOK AND READ!
https://www.mdpi.com/2223-7747/12/3/422
Feeding. Deficiences
2y ago
7
2