i just have a very basic question. when i put the plant into the flowering cycle, does it need more CO2 during the 12hour 'lights on' than if it was in the vegetative state? thanks for any responses. take care

definetly.. CO2 speeds up photosynthesis like oxygen to fire.

http://greenmanspage.com/guides/indoorv1.html

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Sigs bite.

I dont believe for a second that it decreases potency. It increases yield for sure.

LOL okay, i like this, i ask a question and get answers from both sides. so now what? anyone else have opinions on CO2 during flowering? or anyone have any sites on this topic? keep it coming as the more opinions, then the more easier for me and others to make an educated opinion. thank you

Go with who sounds more legit. Go with your gut.

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Sigs bite.

CO2 use should be when the lights are on, that is when the plants use it. I heard that co2 should only be used during the growth stage. I am currently useing it in flowering and it definately has increased the size and growth rate of buds. i won't know about potency effect untill i test this batch.
i keep the co2 at 1500 ppm.
the grow room must be air tight or you're just wasting the co2
also a small fan on the floor pointed upwards keeps the heaver co2 dispersed well.
peace
heart

It may speed up photosynthesis, but SSS is right there is evidence to suggest a decrease in potency.
However, HSS is also right it will definitely increase yield. And since potency has always seemed somewhat subjective to me, I think if you have the equipment why not.

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REALITY is only a concept for people who can't handle DRUGS

thanks for the input. since i use vinegar/baking soda and candle burning in coffee can as co2 devices, i think i'll be fine. sounds like a common ground place. but thank you for your inputs on both sides. that is what i like to hear. take care

i guess that with vinegar/baking soda you can't really control the levels of co2 in the rom, right? is it going to be a problem if you (not you kuri, generally speaking) give them too much co2?
i am thinking to go in the market and buy a few gallons of vinegar and baking soda enough to bake a few thousands of bread......what is the exact percentage for the mixture? vinegar/baking soda....?????????i tried it once and noticed that the co2 release does not last long....how often should i use it?will the plants double in size?what are going to be the results now that i am about to finish week one into flowering?

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You can also use the CO2 cartridges made for BB guns. They can make it a little easier to control the flowrate .

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REALITY is only a concept for people who can't handle DRUGS

newgroweroldsmoker, what i have done, since the baking soda vinegar thing doesn't last long in releasing co2, then i only use a little at a time. usually a heaping teaspoon and enough vingar to get all of the soda. i tend to put it next to the plant where the airflow will go to it and i do it whenever i think of it since you cannot overdo the co2 with this method. sometimes i'll put a scented candle in a coffee can and burn it also as that releases co2.

however, i've just learned a couple things. you are past the first week in flowering. if you give them co2 in flowering, it will help the plant grow faster of course and the buds will form faster, however, there are some thoughts that a good amount of co2 during flowering can lower your potency. so i play the middle ground and give them plant co2 sparingly but not as much as i do in veg. state. hope this little cheap idea helps you in your growing. take care

thanx kuri.....i will apply the burning candle method starting from tonight....so far i was paying them around two-three half hour visits every night and i was talking to them...breathing onto their leaves, checking them out giving them co2....today i finish week number one....from tonight i go into my second week...still though the only smell i notice is 'green' smell....not anything in particular.....should i start buying candles?

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peace

newgroweroldsmoker... i know you know, but let me just say it to get it out of the way. watch out with the candle burning. make sure it is safe and all that yada yada.. okay, got that out of the way. you said 'starting from tonight' you were starting the candle method...two things come to mind... one, burning at night? while you are getting ready for bed? and two... co2 does nothing at night with the plants. so if it is dark and you are adding co2 or breath on them, it does nothing. all co2 should be implemented during light hours for the plant.

although i love to hear that you are talking to them, breathing on their leaves...did you know that they breath the co2 from the BOTTOM of the leave? so breath upward under the leaves.

as for the smell, i have the green smell as well at week 3 of flowring ,but the bud smell is starting to come in, not bad yet. i have two ionizers from sharper image that emits O3 (ozone) and an ona block that i open up when the smell is thick, but not for long as the ona is strong... i don't have the setup where i can use carbon filters and all that, one day.

as for buying candles, that is your call. i like to use tea light candles both scented and not since i can get a huge bag of those for cheap. or bigger candles that are in glass so they burn better. if i'm up, i'll light a scented candle at night just to cover the smell. plus it just gives it that 'cosmic' feel to the room while you talk to you plant!!

is this your first grow? it is for me, but i'm studying ALL the time. enjoy!!

yeah, this is my first successful (so far) as well.....i read what you write above....yes i know they breathe from beneath the leaves....i lie down looking upwards and breath on them....as for the candles, i use the tea candles as well....place them into large metallic coffee containers to be safe and i put them right underneath the plants, within safe distance so as not to burn any leafs (the buckets are big so as there is no problem)....i have 5 computer fans that work 24/7 blowing on the plants, distributing the air that comes in....the thing is that i forgot to tell you this...it is not good to burn the candle during the dark cycle not because the plants do not use CO2 during the dark cycle but because they consume O2 while the lights are out.....this is part of their metabolic activities....for the lumen thing i am not sure....there is a way to have the candle burning in the room during the dark cycle without causing light poisoning, it's just not useful to do so.....bottom line, only during lights on is CO2 useful.....as for the smell, it is not a problem right now, I am in day 9 of flowering and I believe that I have a good setup....plus I live in the country in a place with no big traffic and lots of pedestrians, so even if it escapes I do not think it will be such a problem (I hope not)....my budget is somehow very limited right now & I can't afford any more expenses at the moment....anyway the candles do just fine at the moment.......you say that you study all the time? I think I will be a professor in home cannabis growing when I reach the level of Harvesting my ladies....LOL

take care man & thanx

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peace

PS....a few months ago i planted 10 feminised power plant and 4 regular B-52 seeds....i grew them in veg for 4 weeks and then threw them away as i did not want my visitors to find out.....what a waste uh?

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peace

although i love to hear that you are talking to them, breathing on their leaves...did you know that they breath the co2 from the BOTTOM of the leave? so breath upward under the leaves.

LOL, I always talk to my plants, besides the CO2 it just makes them happy A happy plant is a productive plant

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REALITY is only a concept for people who can't handle DRUGS

LOL, I always talk to my plants, besides the CO2 it just makes them happy A happy plant is a productive plant


you should see the pics i posted in the picture section of this forum and tell me plz if my plants look happy.....i even try to educate (lol) them with classical music.....i hope they will be as productive as happy they look......another last thing is that it is not easy to lie down all the time (the floor is cold) and breath right upwards.....they have gotten very big and some leaves get the CO2 i emit every time i breath out....

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peace

actually rock music makes plants grow faster. Also a great way to get some CO2 is to use dry ice in some water. And you can see all the CO2.

Good luck