The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
How much CO2 is too much
Tommy716started grow question 2 years ago
So I've been adding CO2 to my tent. Is that 1313ppm too high? They're in the third week of flowering
Open
Other. General questions
likes
Answer
Sciolistic_Steveanswered grow question 2 years ago
1200-1300 ppm - i've heard varying values on "max" ... if your vpd, light and fertilizer are not dialed in to match it, it won't matter -- it won't be fully utilized is the better way to say it. Further off that stuff is, the less effectively it can use all that extra Carbon.
think bugby has some video on it?
likes
Complain
Similar Grow Questions
Solved
Uneasy
Foxtail Ready For HarvestHello. This plant of mine became foxtail. As the harvest time nears its end, blooms have begun to bloom again on their hills. Now the first flowers at the bottom are ready for harvest. What should I do? Should I harvest immediately or wait for the new flowers to mature?Buds. Other
Other. General questions
Plant. Other
a year ago
1
3
Solved
LocXar
Humidity rise at nightMy humidity is going up, when the lamp is turned of. Actually i used to have the humidity at 60-70% and the temp at 27c. at night it rises to 80% and above… The off time is from 22:00-04:00. The tent is in my livingroom and the temperature and humidity there is at 21c / 40%.Week 1
Other. General questions
a year ago
2
6
Solved
JSanchezz
Setup Good idea ?Had 2 good Grow in my 60x60x180 in a Celler 15c RH 56%
Trying to optimize my Setup for more "stelth" (Smell) and a Control off Humidity, hadent some bevore
Se The Picture for my Setup
Im Planing a Tent in a Tent with RH Heat contoll in the biger one
What do u think ?Other. General questions
a year ago
4
Solved
Griaglbua420
Stem DMG by Snail (Beaver)Hey,
The Westcoast Og from 420Fastbuds got hardly damaged at the Stem.
Its now 9 Days since and the Plant is growing fine, the Stem is extremely thin at one Point.
Im Afraid that the Weight will be to big for the thin part of the Stem.
Any Rescue Options? would be sad to loose itOther. General questions
Plant. Stem - Weak
a year ago
5
5
Solved
Clepto
Ready to Harvest? - Beginner First PlantShould i harvest or wait a week or two longer?Other. General questions
a year ago
8
6
Solved
Filiaes
PH below 6 bad for plants potted in soil?The Hesi nutrient scheme is reducing the ph lvl of my water below 6 and am asking myself if it is really good to have such low PH for plants potted in soil. Be ware that I use Osmosis water and mix it with a bit tap water and canna calmag to adjust the water before adding Hesi.Week 6
Other. General questions
a year ago
4
4
Solved
SiReNaX
What do you guys think?It's my first grow (automatic, 6 weeks old) and compared to other plants, my plant looks a bit small/ridiculous. I give her 24/7 light (I read that on guides) is that maybe too much? What's your impression of her? I use two growlights (one from above and one from the side).Other. General questions
Plant. Too short
Plant. Other
a year ago
1
1
Solved
coconutcoco
Day 47 from seed, What is suggestions and thoughts? :)Hi this is my first grow, I would like your suggestions and thoughts.
ThanksOther. General questions
a year ago
1
2
Solved
Fisix
Looking for a specific seed. Could anyone help?I am looking for a specific breed called ''El Diablo'' or ''Diablo'' it is impossible to find them. I contacted Reeferman Seeds and Next Generation Seed Company to get more info but they don't answer.
Hope someone knows something or could help in anyway. Thanks.Other. General questions
Other. Other
a year ago
3
Solved
TheObserver
I got to harvest in 14 days: in order to have enough time to cure it before leaving home for 2 weeks (safety first: is a period of floods in here, I just can't take the risk). I had a pretty long vegetative stage but I'm gonna finish it at 13 weeks. Am I gonna ruin it it, right?a year ago
1
1
Solved
inhale_exhale
The optimal temperature in the box is 27 degrees Celsius, but what is the maximum permissible temperature under the lamp near the tops of the plants?my box is on the balcony and it's getting hotter outside and it's only the beginning of summer, already started freezing bottled water for critical hours((: Humidifier, turns on every 1 minute for 40% humidity and temperature jump from 26 to 30 (sensor near the top of the plants)Other. General questions
Other. Other
a year ago
1
Solved
CherryBlosssom
Ready for Harvest?Hello, I'm a newbie and that's my 1st try growing at home. I created my growing box with LED lights and ventilation—3 plants from Fast Buds auto mix. Question: Are they ready for harvest (100 days old)? And I would love to hear advice on how to dry them. Thanx!Other. Harvest - Drying
Other. General questions
a year ago
2
2
Solved
ykscotttyk25
Can I use PayPal to withdraw the money if i win the fast bud meme contest?Can I use PayPal to withdraw the money if i win the fast bud meme contest?Other. General questions
a year ago
3
3
Solved
kira90
notice any nutrient deficiencies or toxicity ?Hi guys, I was wondering if you could tell me if you notice any nutrient deficiencies or toxicity auto 25° /55%rh / ts1000 distance 60cm 75%power 40 dli (photone) feed two days ago and still wet with 700 ml
0.5ml bllom
Budcandy 1ml
1ml rhinoskin
0,5 calmag
Ph 6.4Other. General questions
Feeding. Deficiences
a year ago
1
3
Solved
AlpAge_Cino
Missing strain from HSB breederHi,
I'd like to start a diary with "Strawberry Banana Auto" strain from "High Speed Buds" breeder. HSB is referenced as a breeder but this particular strain isn't. I tried to ask gently to support to add it by mail and with the direct contact form, but no answer so far so ???Other. General questions
a year ago
1
1
Solved
dawanky
When should I harvest?Hey, what do you guys think? How long should I wait before the harvest? It already looks good to me
I have seen that other growers have taken longer with this strain, but my plant is much further developed in week 11 than in the other diariesOther. General questions
a year ago
3
3
Solved
Dragosani666
When to harvest?Beginner question:
Would you say this is ready to harvest soon or should I wait some more? Leaves turning autumn colors, 3/4 of pistils turned orange.
Trichomes look rather clear, but some on the head bud are amber already.
RQS says 8-9 weeks. Starting week 9 soon.10 months ago
8
6
Solved
Snaqq
First Grow General FeedbackHello Growers
OG Kush
80x80
90cm
26.4°C
54%
Every 2 days ~2.7 liters
CANNA Flores 15ml, Rhizo 10ml, Zym 13ml, Boost 10ml (next 20ml Flores, 2,5 Rhi)
Yesterday defoliated, Flower D14
While I dont have a specific question, I would greatly appreciate any general feedback
ThanksOther. General questions
Feeding. Schedule
Techniques. Defoliation
10 months ago
2
1