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Back to Grow Questions
FistingNuns
started grow question 6y ago
Why don't small closet growers use rockwool blocks?
Solved
Setup. Substrates
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Mr_Weeds_Autos
answered grow question 6y ago
It's more of a choice and experience really because Rockwool blocks are just a soilless substrate or growing medium.
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Selected By The Grower
CRiSPrGrow
answered grow question 6y ago
uhm sure they do, some even do NFT in a 2'x4' it's not a problem , just a choice. My thing with rockwool is that it doesnt work as well as a normal root plug, but it does become necessary when you want to grow sterile. hope this helps ! 🚀
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Similar Grow Questions
Solved
GreenGuerilla
ANY UK SOIL RECOMMENDATIONS ?
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Week 3
Setup. Substrates
6y ago
2
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Solved
DeepWaterGrower
Do I have too much bubble in DWC bucket? VIDEO
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Week 2
Setup. Substrates
4y ago
3
11
Solved
Swvacountryboy
The possibility of using runoff, oxygenated, tested, adjusted to hydro levels and reused? Will it work or have I wasted money again?
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Setup. Substrates
5y ago
1
3
Solved
FlynnRyder
Spider Farmer driver failure. LED HELP. Should've went HLG.
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Other. Other
Setup. Substrates
Setup. Lighting
6y ago
1
2
Solved
Pumweed
Mold on soil
I used BioBizz LightMix with Monsterbud Mix from Amnesia and some mycorrhiza in the hole of the seed. 3 seeds after 3 days still not germinated in soil. Had foil on top of the pots for humidity. Probably watered a bit too much. What should I do and will my seeds still germinate?
Setup. Substrates
3y ago
4
5
Solved
MarryJuan
Hydro Media other then Clay Balls?
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Week 1
Setup. Substrates
5y ago
6
6
Solved
SilverSlapdick
How does this soil mix look?
Running 65% ProMixBX, 25% Castings, and 10% perlite. With 5 tbsp each of crab, feather and fish bone meal as well as 2.5 tbsp each of kelp meal and bat guano. (20 tbsp total for 10 gallons, 2tbsp per gal) Is this too hot for autos?
Setup. Substrates
4y ago
4
3
Solved
dataTwiiix
First coco/perlite grow
Premier grow coco/perlite: At what point should we start adding canna coco when growing autoflowers? And if you have any info on pH and EC, I'm all ears because I've found a lot of information online that doesn't match up.
Setup. Strain · Autoflowering
Setup. Substrates
Feeding. Schedule
5y ago
1
1
Solved
Wuutownwarrior
Assistance needed
So I have borrowed a ph tester for a few days and my tap water is 7.8 and my plants out all 7 of exactly is this ok or will I have to make changes ...any free or low cost ways to reduce ph in tap water ?
Week 3
Setup. Substrates
6y ago
2
4
Solved
OneDropOfTHC
Once seed cracked i planted seed on this soil. Is it too strong for the seedling? Am i already in trouble? xP
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Setup. Substrates
6y ago
3
4
Solved
Sackeyko
Manure in outdoor pots.
How much manure should I mix into my pro-mix. I have a pile of seasoned manure from last year and want to use it in my outdoor pots. I want to mix in some Gaia Green bloom into it also. Thinking of using 10 gallon fabric pots. My photo seedings just popped out of pure pro-mix.
Setup. Substrates
5y ago
4
Solved
StDeacon
Can I pour the earth very hot in the blazing sun?
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Setup. Substrates
6y ago
3
Solved
Ign33l
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Week 6
Setup. Substrates
Setup. Ventilation
6y ago
1
1
Solved
LisaSativa
Growing medium
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Setup. Substrates
6y ago
4
Solved
grizzlytwitterdruid
Moss in 2nd week
Hey everyone, What should be the next course of action as moss has grown on the plants in the past two days (and it seems likely that the pH level is excessively acidic - source the internet)? https://growdiaries.com/diaries/169293-grow-journal-by-grizzlytwitterdruid
Week 2
Setup. Substrates
3y ago
7
5
Solved
Apple_Jack514
White mold
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Setup. Substrates
4y ago
4
7
Solved
xanado18
PH is 4.9- BAD batch of happy frog.
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Week 2
Setup. Substrates
6y ago
1
1
Solved
Weediz
Brand new coco shows PH at 4.5, plants in germination state
I am germinating my seeds in coco. My coco shows PH of 4.5! That seems way too low! I tried to flushing with PH 6.7 water without any effect (see growdiary for more info). What should I do? Is something wrong with my coco?
Setup. Substrates
4y ago
4
3
Solved
Maddiq
Overwatered cubes in hydro? Too close to the sun? or effect of having add
Hi All, I have issues with my first hydro grow - i effed up. I think i was too slow in the transfer over in the tank. Light is 200 PPFD, EC at 0.6, and barely added any nutes. Did i manage to overwater some of these plants by having them too close to the net pot?
Week 1
Leaves. Curl down
Leaves. Color · Yellow
Setup. Substrates
3y ago
3
Solved
Kianjack
Rock wool cubes
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Setup. Substrates
5y ago
2