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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
idkwhatimdoing
mistakingly planted in soil, any way to make this better?
so i originally planted both of my plants in soil and made the mistake of only using soil and i just now bought coco and perlite but i can only really use that with the next plant. is there a way i can still uh "fluff" up the soil without harming my plants?
Roots. Other
Setup. Strain · Autoflowering
Setup. Substrates
4y ago
2
2
Solved
RoyalBlood
Best nutrients schedule for hydro and how to cool down Res without chiller.
I have painted the Res white as well as adding frozen water bottles this bring the temps to around 17C but ends up at 21C the next day.
Week 2
Setup. Substrates
Feeding. Schedule
6y ago
1
2
Solved
izzy89
Too much soil?
I have 15L (4gal) fabric pots. The bag of soil contained 50L (13gal). It took me 1 bag and a quarter to fill 3 pots up untill the stitching. Am I doing something wrong? Could be that it has now more fertilizers in it than supposed to. Thank you
Setup. Substrates
4y ago
4
6
Solved
Crystal_Nugs
Soils blended with coco
Tried to do a soil, coco, and perlite mixture on this cone. Turned out a disaster. Had to dig it up in the 2nd week and add a bunch of coco. What soil do you use when blending with coco?
Week 2
Setup. Substrates
4y ago
4
4
Solved
weedfan133
Can you please tell me if the sides need to be covered with earth?
When I covered the soil in the beginning it wasn't like that, but after waterings the soil shrunk and now there is space between the pot fabric and the soil. Should I add more soil to avoid root problems? And also the water drains down there and quickly runs downhill 😞
Week 4
Roots. Other
Setup. Substrates
Setup. Other
1y ago
3
3
Solved
GreenGuerilla
ANY UK SOIL RECOMMENDATIONS ?
Hi Guys, can anyone recommend a commercial soil mix suitable for transplanting outdoors in the UK? I'm currently using Biobizz indoors but looking for a more readily available option as all the grow shops are currently closed leaving Homebase, Wickes or B&Q as my supply options.
Week 3
Setup. Substrates
6y ago
2
3
Solved
Kellykush420
Fungus among us
Hello, My question has to do with a little mushroom I found growing in my soil under my plant. Is it a good sign or a bad sign?
Week 4
Setup. Substrates
5y ago
2
2
Solved
Funkygrower
Soil
So I asked wrong question before about soil I wanted to know if there is a better soil than canna pro and biobizz light mix for autos
Setup. Substrates
5y ago
1
4
Solved
m0use
PhUp P.Hydro vs. P.Carb vs. Both
Potassium Hydroxide Vs. Potassium Carbonate : or Both for PH+ up. Does one have lower EC value in solution when used? Does ones have better stability in solution for hydro or soil? Does one have more reactivity with other elements in the grow? Does one have higher PH?
… Show more
Week 10
Other. General questions
Plant. Other
Setup. Substrates
3y ago
4
1
Solved
tsukigona
Substrat composition
What do you guys think of my substrat?
Setup. Substrates
6y ago
1
1
Solved
XanHalenTGI
Switching to Gaia Green Organics, How is my Feed Schedule Looking?
SEE PHOTO FOR FULL SCHEDULE, COMMENT TWEAKS OR ISSUES PLEASE!!!
Setup. Strain · Autoflowering
Setup. Substrates
Feeding. Schedule
1y ago
1
3
Solved
matt_i_us
Condensation build up
I have some condensation build up in my pots that I germinated in. Should I do anything about it. I've also noticed some green algae build up on the sides. Should I be concerned with this Any help is much appreciated.
Setup. Substrates
Setup. Ventilation
Germination. Other
5y ago
1
Solved
birdmountain
Wie kann ich vorjährige bereits 2-malig genutzte Pflanzenerde erfolgreich aufarbeiten?
The soils from last season were stored outdoors and are quite depleted. How can I achieve good results with them this season?
Setup. Substrates
7mo ago
9
10
Solved
Roxie_xx
Could I successfully grow only using Coco A and B?
I am a totally new to growing, my first grow will start in about 2 weeks and was curious could I just use coco a&b for the entire grow or would I need other nutes?
Setup. Strain · Autoflowering
Setup. Substrates
Feeding. Automatic systems
7y ago
2
2
Solved
Creature_344
Another Soil Question
Hello- Another soil question. Currently use Happy Frog. For Promix, do you need to add perlite or vermiculite? Has anyone used Commonwealth Canna soil? Looking to use something different. Thank you in advance
Setup. Substrates
4y ago
3
2
Solved
DoDrugs420
Whataretheeeeeese
The soil holds too much the water and takes too long to dry up, no fan or temps will drop bellow acceptable, so besides taking advantage of the sun whatelse to do? They seem to hold well and have steady grow even without watering for 5 days... they dont need oxigen or what?
Week 3
Setup. Strain · Autoflowering
Setup. Substrates
Setup. Ventilation
7y ago
8
4
Solved
HeavyHead
Mixing soils???
I’m about to plant some autos and I’m short a bit of soil I was planning on using. I have some Kryptonight aprox 3gallon and a mix of fox farm happy frog/ocean Forrest. I was thinking of mixing the 3 and spreading it between 3 3gallon pots. Anyone see any problems??
Setup. Substrates
6y ago
1
2
Solved
MindFlowers68
Bee pollen to feed microbe an fungi week 5 flower
Benefits of using bee pollen. I have this jar of it sitting around for years. I'm kind of scared to eat too much of it and get a bad reaction. I Just gave a microbe tea last week thinking about giving it some to feed some of the microbes. Starting week 5 of flow
Roots. Other
Setup. Substrates
Feeding. Other
2mo ago
5
Solved
Spike-GreenGrower
(2nd try) Growing in Coco - organic nutrients possible or only synthetics?
Can one use Organic nutrients + microbes when growing in Coco? I have two full bottles of Alga and Bloom and don't want to toss them. My tapwater is hard enough (now with proper pic) so Ca shouldn't be a problem 😂 What would be the advantages vs disadvantages?
Plant. Other
Setup. Substrates
Setup. Other
1y ago
16
7
Solved
Dillsnills
What is the best way to get rid of fungus gnats? First time I've ever had a prob with them, advice plzz and will be appreciated
I have some minor issues going on with fungus gnats, I'm trying to prevent more and get rid of them. What is the best way to get rid of the fungus gnats. Advice opinions input greatly appreciated.
Other. Bugs
Setup. Strains · Photoperiod
Setup. Substrates
4y ago
3
4