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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
Michael1234
fallen leaves down, lower leaves turn yellow
please help my White widow automatic and northern lights automatic something they are like, they have fallen leaves down, lower leaves turn yellow I don't know if they lack nutrients or need more water, or maybe they got too much water, water them every other day, yesterday they
Week 5
Feeding. Deficiences
6y ago
6
2
Solved
Grrrower
Yellow leaves
my little GG2 is starting to lose many leaves (they turn yellow and fall even before drying) while the other is not having any problems (the only difference between the two is the "aggressiveness" used in the LST) it could be due to the flushing done (but less than 5 days ago) 🤔
Week 10
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
2
2
Solved
CannaKrops
First time Coco coir. I neglected to check the pH before planting, and I can't seem to get the pH down from 7 to 6. I have tried rinsing with several gallons of 5.5 pH, no help. What is safe to add while growing? Thanks!
Week 2
Feeding. Deficiences
5y ago
2
2
Solved
Chill07
Auto starts flowers then stops
Can an autoflower plant because of stress stop flowering then start up again? It is a northern light auto fem seed that started to flower in week 12 but then nothing then week 14 starts growing and flowering.
Feeding. Deficiences
5y ago
1
1
Solved
TerrazasBrew
Spot the deficiency
Lower leaves turning yellow and showing different spots of different colours. Top leaves are light green. Watering with RODI water and 1ml/lt Byron Bay Gold Please help me to find the problem and solutions Light burn? Cal/mag/Cooper/iron deficiency? Mold? Low pH? All together?
Week 6
Feeding. Deficiences
5y ago
2
2
Solved
aDriftwoodKing
Seedling yellow tips
One of 4 seedlings has developed yellow tips. Leafs have been curled down since it sprouted. It's about a week old, FFOC soil w/Perlite, Mykos, 3 gal fabric pot. Have been watering until soil is damp using finger test, about a cup or 2 a day. Added 2 ml of silica boost yesterday
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
1
Solved
TheDefiant
Hey, anyone got any idea or clue what's going on?
I thought it was a manganese or iron deficiency from an early watering with high pH. Though I've fed/watered my other 2 plants pretty much the same stuff but she seems to be reacting really poorly. She seems to be getting better slowly.. I think. Thanks for taking the time. :)
Week 4
Leaves. Other
Plant. Other
Feeding. Deficiences
6y ago
3
Solved
kaiabel
More leave pictures because im starting to worry more. Need tips or kind words :-)
11.03 last feed all had ph 6.7 and 980ppm , 15.03 1200ppm 6.7 ph except the wc (short one) guess its was 980ppm. one fedd is around 15l for four plants, water is sitting for 4 days till its used. adding mag because tapwater has 90 cal 11 mag so its not near the 3 to1. Lights 80%
Week 10
Leaves. Wilting
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
3
Solved
prem895
Nitrogen?
Wondering if somebody out there can tell me if this is nitrogen deficiency or what Cinderella 99
Week 8
Feeding. Deficiences
6y ago
2
4
Solved
Dillsnills
Deficiency or nute excess I have trouble telling the difference?
Is this a deficiency or an excess of nutes my ppm run off is 1030 after a nute feeding the feeding before was 883 ppm, lemon autoseedsmanwk5flowering,I jus got cal mag was going to give it a 1/4 dose 6.6ph, advice input greatly appreciated,telling deficiency or excess is mytroubl
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
1
1
Solved
densesensi
Did I nute burn my leaves?
I fed GH flora trio yesterday - introduced the bloom None of my other 2 plants have this. The other auto is the same age and fed the same dosage. How can I fix this? Or will it recover?
Week 5
Leaves. Color - Dark-brown
Feeding. Deficiences
6y ago
1
2
Solved
Overgrotho
Optimal pH for Vermic/Peat/Casting mix?
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?
Week 3
Feeding. Deficiences
6y ago
3
Solved
kizdog
Small orange/bronze spots?
So some of the leaves in the middle/top of my plant are getting these orange/bronze spots. I’ve seen examples of a few different issues that looks similar. Can anybody tell what’s going on here? Happy to give more info
Leaves. Other
Other. General questions
Feeding. Deficiences
5y ago
1
1
Solved
Scrubs1983
Is this a nutrient defiecency or nutes burn?
Hi.. Im grwing an auto sweet cbd day 46 i ve noticed lately some yellowing tips on new growth and slight intervenal chlorosis on older leaves ...currently feedin with npk high ph every other week and malasses plus seaweed the other please advice light 250 w 30_35 cm distance
Feeding. Deficiences
5y ago
3
4
Solved
Bootymissles
What deficiency?
What kind of deficiency on my newer growth?
Week 7
Feeding. Deficiences
6y ago
7
7
Solved
arctic
Hi all! :( I am using RO water 030ppm. 200ppm(0.4ec) canna calmag agent 400ppm canna aqua. HPS 600w. 25с, 40-50%H, ph 5.7-5.8 total ppm ~ 550-650. I d
Hi all! :( I am using RO water 030ppm. + 200ppm(0.4ec) canna calmag agent + 400ppm canna aqua. HPS 600w. 25с, 40-50%H, ph 5.7-5.8 total ppm ~ 550-650. I don't understand what's going on: (all young plants get older and similar problems begin. it cal mag deficiency?
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
5
9
Solved
Eponymus29
Calmag deficiency?
So I thought I had a little light burning in one of my girls first leaves this due to some foliar feeding a I did during their first week, but now it kinda looks like is spreading so I'm wondering if it might be some calmag deficiency?
Week 3
Leaves. Color - Mottling
Feeding. Deficiences
5y ago
2
2
Solved
elevensixty6
Deficiency?? Excess? Neither?
Grown this strain before and had the same issue.. not sure if its a CalMag deficiency entirely. pH has remained at 6.0-6.5 or so in soil and didnt show signs until recently, seemed to have worsened after just two days of only CalMag and Ro water so I bumped up the bloom nutes.
Week 5
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
3
Solved
greenthumb86
have i got any deficiencies that i have missed as im am a newbie
Week 1
Feeding. Deficiences
6y ago
1
1
Solved
CaptainKirk1188
Fixing deficiency/toxicity/overwatering issues
How do I properly identify and remedy these issues with my babies?
Week 12
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
7
10