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Back to Grow Questions
CO2 and PPFD
DutchGuy01
started grow question 3y ago
Grow schedule per week: Which CO2 ppm in relation with light PPFD?
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Other. General questions
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DutchGuy01
answered grow question 3y ago
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Selected By The Grower
Ctrellis90
answered grow question 3y ago
Generally only use co2 if you're using HPS bulbs because of the amount of heat stress they put your plants under.
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Ctrellis90
answered grow question 3y ago
Co2 correlates with temperature not light conditions. 85-90 degrees F. 1200-1500 ppm co2
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Similar Grow Questions
Solved
Mosherd7
When to flip a mainline grow?
My grow is far from perfect, but ideally, when is a mainlined plant good to start flowering to get a large yeild? Just moved mine to finishing containers, pretty stalky, but not a lot of leaves due to method. Worried it would impede growth.
Week 12
Other. General questions
Techniques. Main-lining
6y ago
1
1
Solved
MasterKush714
NEED HELP WITH PH!!!!!!!!!!!!!!!!
HOW TO LOWER PH IN MY WATER FOR FEEDING?????
Other. General questions
2y ago
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Solved
Nooky
Newbie help for Temperature (Automatics)
Hi, everyone, I'm a newbie and started my first grow indoors 3 weeks ago. now I read different information about temperatures at plant level everywhere. a website says something from 20 - 24 Celsius. The other site something from 22-28 Celsius. Another website then says something
Other. General questions
3y ago
2
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Solved
noshoesguy
Hardening off older plants?
I know about hardening plants off when going from indoor to outdoor but is that just for young plants? Is it safe for me to move plants vegged under 1000w hps for 1 month outside without properly hardening them off? They are 1.5 months old.
Other. General questions
Plant. Other
Setup. Outdoor
5y ago
1
4
Solved
Artizzmo1
Pump or siphon
Hello, I am using AC infinity self watering trays (currently without the wicks) and I am looking for a way to drain the trays without removing them. I am looking to get a small pump or siphon to remove the overflow, do you have any suggestions? Thanks, Art
Week 8
Other. General questions
2y ago
2
3
Solved
Lewd101
Drainage/Aeration during late flower.
1. What would you consider max perlite:soil ratio? Going to bump up the perlite next time I got a longer veg/flower. 2. Anyone have any tips on improving this other then adding to initial mix or stabbing holes in the dirt?
Week 16
Other. General questions
Plant. Wilting
3y ago
1
3
Solved
Rayshian
What do you guys count as day 1 of flower, the flip to 12-12 or the first pistils comin in?
I ask because I wanna make sure I'm counting accurately for the timing of the flush. My GSC took 2 weeks of 12-12 before showing pistils so is that actually 2 weeks of flower or does 8-10 weeks of flower start from the first pistils?
Week 9
Other. General questions
5y ago
1
3
Solved
Dasty
How many plants can I put into my 100x100x180 tent please?
Hello everyone, how many plants can I put into my tent please? I've bought 7 fabric pots (16l) (28x26cm), can I put all of them in there? I have RQS Northern Light Auto, any advices will be much appreciated..have a nice day :-) tent: 100x100x180cm, light: Mars Hydro TS1000W
Other. General questions
6y ago
1
1
Solved
leefy770
Deep freezing fresh bud
Hey guys and gals.so I just harvested a batch of granddaddy OG from purple capers and I’m waiting on a harvest right freeze dryer? I vacuum sealed and put the bag in my deep freezer is this OK storage for freshly harvested bud I’m only leaving it in there for about five days?
Other. General questions
4y ago
3
3
Solved
Iceman1187
Outdoor Kosher Kush ready for harvest?
First outdoor grow in Northeast US. Feminized kosher kush moved outdoors mid May. Pictures are from two plants side by side. One plant has branch which is begining to break at main stem. Wondering if these are ready for harvest or should I wait another week?
Buds. Other
Other. General questions
2y ago
3
2
Solved
donnythechef
Stunted growth on fast auto strains..
When stunted with too much stress, will a fast growing auto strain such as Fastberry still manage to eventually grow fully developed flowers? If so, how long would you expect this to take? Given an inital 8 to 10 week germ to harvest time.
Week 6
Other. General questions
6y ago
3
2
Solved
Dudders
General plant health?
First time grow and pretty sure I'm heading towards pre flower. This site has been fantastic in guiding me through :) Just wondering if any of you experts could advise me of how you think it's getting on and if you notice anything wrong that I might need to act on?
Other. General questions
Plant. Other
4y ago
1
1
Solved
Mikewithgreenthumbs420
Should I Defoliation some more of the bottom stuff before I seed all my girls to flower I know ill have to wait until they heal
Defoliation of bottom suckers as they call em took stems and some fan leaves that where blocking light had to much fan leaves on canopy so I did this 4 days ago was wondering if I should still strip away more bottom stuff away? so I the plant can move more energy up top
Leaves. Too many
Other. General questions
5y ago
3
Solved
FrostyCloudzz
anything wrong??
Can you tell me if its good or should I be worried about the plant the leave looks burned or I don't know the other leaves are perfectly fine
Leaves. Tips - Burnt
Leaves. Other
Other. General questions
5y ago
3
3
Solved
Moralitee
Germination Question
2/4 Seeds Didn't Drop. I left them in for just over 24 hours. Are they okay? (Germination)
Other. General questions
6y ago
4
Solved
Breakupp
Hi, is it normal to be hollow in the middle?
I decided to top the plant and place the cut in a clone dome to try to reveal gender faster (12/12 cycle). But i notice its hollow in the middle, is this normal? Plant is very healthy beside that. Stems is very strong.
Week 4
Other. General questions
Plant. Other
6y ago
11
11
Solved
Percy
Fatten up my buds flower week what?
Can anybody help me determine what stage of flower (week) this is stupidly i lost track and now i feel its struggling due to not enough bud/bloom feed, anyway to make these buds fatten up
Buds. Not fattening
Buds. Other
Other. General questions
4y ago
5
5
Solved
2highforu
Not an auto?
Im growing 4 GSC autos from “gardenofgreen” it’s week 8/9 & 3/4 r in the 4th week of flower(looking nice too). The other 1 has yet to start, I had transplanted it 2 days later than the rest as a seedling & to a 2x larger pot. Is it just slow, or maybe a photoperiod seed snuck in?
Week 8
Other. General questions
Plant. Other
Setup. Strain - Autoflowering
4y ago
2
4
Solved
Grow4Releaf
Hermed? Looks dif the the others
Need fresh eyes to take a look . Thinking one of these might have hermed on me. Here's a few pics I got .
Other. General questions
Other. Other
Plant. Other
3y ago
5
6
Solved
JacareGrows
Watering close to harvest
On the last days of the plant, i mean, close to harvest. How you guys water your plants? Same system only when the top is dry? or you guys let it dry more, or water more than per example 7 Liter of soil = 0.7 L of water ? And its normal that sugar leafs fade de color?
Week 11
Other. General questions
6y ago
14
6