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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
BavarianBarbarian
Nitrogen Toxicity?
Not sure if this is nitrogen toxicity or normal leaf color. Crinkling was caused by too much light and the fan. Got better in 24h after adjusting grow light and fan. Plants are starting week 2 of veg, Hulkberry Auto. Medium is light mix soil.
Leaves. Twisted
Plant. Other
Feeding. Deficiences
2y ago
4
3
Solved
thenewdude
Hello, please look at my latest pictures and please tell me whats wrong with my plant
Hello! I left for a week, I gave 1.5L of water before I left ( up from 1l, I gave the same amount of nutes as before, as advised on my feed chart. and some of my leaves at the bottom went kaputt. I have no clue whats going on. please help! I have to leave tomorrow for 3 days.
Week 6
Feeding. Deficiences
6y ago
3
3
Solved
GrowGuy97
Nitrogen deficiency
One of my plants seems to have a nitrogen deficiency & I was just curious how exactly I fix that? Using fox farm trio for nutrients & growing in fox farm ocean forest soil! Any advice would be great thanks in advance!
Feeding. Deficiences
6y ago
1
2
Solved
Lol_You_Looked
White and yellow spots, yellowing leaves? What is going on!
Changed water, no fix, added humidity, no fix, any ideas as to what's going on with my plant?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
3
Solved
AutoGOAT
Help
Hi. So im using a soil(plagron batmix) which says i do not have to feed the plant for 6 weeks. I looked up a couple videos and they say that as an organic grower, i dont have to ph my water. But im still having some kind of deficiency. So what do i do? Thanks a lot!
Feeding. Deficiences
5y ago
2
1
Solved
tiasmaaa
Magnesium Deficiency ? How can I fix it ?
got a little deficiency (maybe burned? but I think not). I'm pretty sure it's magnesium's deficiency, it happens after a flushing. I added 2 times the last 2 weeks a little bit of CalMag (BioBizz, but ive bought it 2 years ago, maybe it doesn't work well idk).
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
5
5
Solved
MrGreenMan
What is causing PK deficiency signs on mid leaves? Too little Calcium causing lockout??
Hey everyone, in mid and late flowering with my autos, all experiencing similar problems and I’m inclined to believe it could be due to a lack of Calcium? Could a Ca deficient plant cause these symptoms which resemble a PK deficiency?? I’m 100% adding enough bloom
Week 11
Feeding. Deficiences
6y ago
5
Solved
Cannabud13
Too much water? Not enough?
Too much water? Not enough? Gsc Auto day 40 and struggling this week. FF OF+ Kind Soil so no nutes. Temp 73-76, rH around 60. Water around 1L/week currently
Week 7
Leaves. Wilting
Plant. Wilting
Feeding. Deficiences
6y ago
2
1
Solved
Faegrows
Ppm in runoff higher than feeding
The run off ppm is around 500 and when I watered it it was around 200 ppm. Ph levels are fine. Does this mean it’s not getting the nutrients it needs? How can I solve this?
Feeding. Deficiences
5y ago
2
2
Solved
Hiphopopotamus33
Possible deficiency?
What's going on with my girl? This has been a continuing problem throughout my grow and I'm stumped.
Feeding. Deficiences
6y ago
3
Solved
xanado18
I’m on the start of the 5th week, and my 12 week plant is fading pretty hard. Doing full organic supersoil, threw in a top dress a week ago didn’t seem to slow the n deficiency. What should I do??
Week 12
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
4
Solved
fromseedtosmoke787
HELP/AYUDA!!! firts grow small yellow spot and leaves
this is my first grow and on day 7 my amnesia auto is whit some tiny yellow spot im growing on coco and perlite with a PH 0f 6.0 is it to much feeding water o is it a calmag dificiency? any help is welcome :(
Leaves. Color - Yellow
Feeding. Schedule
Feeding. Deficiences
6y ago
1
2
Solved
fish_ringer
last week some leaves turned yellow and appeared brown dots (
runoff ppm - 752 runoff Ph - 7.2 last time added: bud candy 2ml/l big bud 2ml/l, nirvana 2ml/l,
… universal_button_show_more
Week 8
Setup. Strain - Autoflowering
Feeding. Schedule
Feeding. Deficiences
5y ago
2
1
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
williamrainx37
Purp stalks, weak leaves.
Hey guys i noticed that my stalks were all turning purple and my leaves are curling. Is this a nute lock out ? Or is it light burn ? I started them under a pretty powerful Led but still getting new growth through the last 2 days. They look thirsty but medium is still soaked.
Leaves. Curl down
Plant. Stem - Red or purple
Feeding. Deficiences
6y ago
2
2
Solved
Chronic_Chronicles
Does anyone have advice on determining if you are watering too much or too little??? My plants arent growing too fast and the leaves never look fully awake. Thanks in advance!
Week 3
Feeding. Deficiences
6y ago
7
5
Solved
malumalu
Health
Is something wrong with my girls ????
Leaves. Other
Plant. Stem - Red or purple
Feeding. Deficiences
4y ago
1
Solved
Dillsnills
If I do a mini flush to help w pH issues in my soil can I give a nute feeding right after or wait until next watering?
If I give a flush to help with pH issues can I do a nute feeding right after I flush or should I wait for the soil to dry out and do it next watering? The pH in the soil needs to be fixed asap any advice opinions is greatly appreciated.
Leaves. Color - Yellow
Plant. Other
Feeding. Deficiences
5y ago
3
4
Solved
Paul71
Idk what's wrong
Can anyone help me figure out what's wrong with this baby? Special queen photo, week 8 of veg, organic pellet fertilizer added directly in soil. Always watered just water, seemed so healthy till last week, then leaves started yellowing a bit.. Nutrient deiciency/excess? Wdy think
Leaves. Color - Yellow
Feeding. Deficiences
Techniques. Topping
2y ago
2
Solved
Ghostknife78
Nutes in flower
Anyone have any feedback on running high ppm in flower with RO water? Does SLF-100 help flush unresolved nutes? My first grow but I think I'm blowing it, please look and tell me what I'm doing wrong.
Week 9
Feeding. Deficiences
5y ago
2
1