co2 is very important

[kyndone]

ok, well, i did try the homemade version of the co2 bottles, for the last month, and i really dont know if it helped or not, you can be the judge if you want, here is a new pic.

 

[stony2]

actually when i wasnt running ANY ventilation, let alone co², i was getting the same good results as i get now

sorry but everything about air and co² is makebelieve. air change is only important for getting temps down (although cannabis can take 30-35 C° easy) and getting humidity down to avoid budrot


greetz
stony

 

[kyndone]

here is one more pic, and again thank you to everyone who gave their input, next round im going to do one with my homemade jobber, and one without, and maybe one with a co2 booster, thats alota lights, maybe just two projects at a time, and thank you Ursus, i will see if my local dro store has em., i will try them too., , the only reason im even doing this co2 stuff is because a good friend of mine swears by it, and everything that he does turns out super bomb. but he wont tell me all of his secrets, lol.

 

[Xare]

Additional co2 would hinder my setup, not help it.

Faster growth would give stretcher plants that are taller giving you less light penetration and smaller buds.

co2 has to be considered from the very conception of the grow.

You can setup to grow with it or without it. But its not going to give you a better yield unless you were not able to live up to potential.

At least that is my outlook on co2 and I get over 1 gram per watt.

 

[kyndone]

its set up alot better than i had it before, before, i had a room made of the panda plastic, and contractors plastic, with blankets hanging over the outside of the plastic,(you would have laughed if you saw it) in about 8 ft. by 7 ft., by 7 ft. high, to many air leaks, and to much of an area, especially when it wasnt sealed in any way., now i have a box, 5.5 ft. tall,3.5 ft. wide, 2 ft. deep, completely sealed, except a couple pinholes maybe, the only time its not sealed is when i open it to water/feed, and stare at for about half an hour, about an hour after the lights come on.this cycle was a journey, i learned so much with this one., but summer is coming, keeping em warm has not been a problem,in the winter, as i live in So.Ca. but keeping them cool, now that is different. i cooked a banana kush tree last summer, and i dont want to make the same mistakes. being able to control airflow, has been a key weapon.

 

[Kronick]

my room is sealed if u exhaust u suck out the co2. i do run a exhaust and extra carbon scrubber when light go out to give fresh air in there for the next day and it keeps my dehumidy from runnin as soon as light and co2 kick on the exhaust kicks off. its the most effecient way since the fan i use is 100w and the dehum is over 1000. and a fan on the floor facin up helps to.

This is exactly how i would like to do it,how often do you exhaust during 12/12.

 

[kyndone]

i dont exhaust, i let it blow out of a 4 in. hose on its own., so all the co2 stays at the bottom, and the sealed box forces the air out the top, and i have a fan sucking in from the bottom blowing air up, into the plants,(indirectly) and a fan blowing across so it circulates the air and co2 in and around the plants. when it warms up i will need the exhaust fan, to keep it cooler, but i can still control the airflow by blocking the hose or opening all the way.

 

[zgpowmonkey]

This'll probably get a chuckle, but back before i could afford any kind of "real" grow equip, i had some diy co2 supplementation. I would use cheap stuff like yeast, water and sugar or vinegar and baking soda. i'd throw either mix into a soda bottle fitted with the cap which had a hole melted in it and a small hose i found jammed in it. Of course, this was a micro grow of 4 plants in a completely salvaged setup. Found some lights at a demolition site, kitchen cabinet from an alley, found an old window planter, even re-used the soil. I paid for a bathroom vent fan and some pete's 20-20-20. The point being, it wasn't close to being sealed. Sometime during the light cycle, every day, i'd mix up a batch of whatever, throw it in the bottle, fix the tube above the plants with a coathanger, turn off the fan and leave it for a while. The yeast reacted much longer than baking soda/vinegar. Within half an hour the leaves would start to flex upward; after a few hours they would look as if they were about to clap. Once the reaction would end, i'd remove the bottle and turn the fan back on. after another hour the leaves would return to a 20 degree angle or so. They shot up into the lights in 3 weeks from seeds (fluoro, thankfully). Kept it up thru flower and yielded about 2.5 oz from 4 plants from bagseed. It doesn't prove anything, but those plants were sure happy during their "treatment", and i was pretty surprised at the yield.

 

[kyndone]

i have two plants which im hoping to get 3.5 or more zips, but we will see, they look so beautiful, i just stare at them for a while when i open the curtain.

 

[darkhorse]

co2 test kits,

http://www.progrow.co.uk/acatalog/info_305.html

not sure how effective they are.

 

[lil~greensprout]

after reading through these posts , I'm wondering why there has been
no discussion on the use of carbonated water as a foliage spray .
I've been using that method, and I can see results within 20 minutes of spraying them with it. I also agree that by simply
drawing more air through the containment area you not only
increase the CO2 but your replacing the worn out CO2 with fresh
and this goes on 24/7 vs an hour or two you would get from an
CO2 system.
any info related to the carbonated water method would be interesting , does anyone else use that method and with what results ?
I should mention I use Canada dry club soda [low sodium] brand o2 water .

 

[potlatch]

So are there any specific symptoms of CO2 deprivation?

I have an unsealed environment; I want minimal exhaust from my room during the winter because I will probably need to heat it, using T5 for veg and LED for blooming in a DR120.

 

[kyndone]

that is what im wondering, if i didnt use the co2, would my plants have turned out the same?, thats why im doing one with, and one without next time, i think the c02 is important because, its like oxygen to us, if we dont have enough, it can cause problems, i think a plant would be the same way.but just for scientific reasons,(and first hand knowlege) im gonna try both.

 

[vancityj]

CO2 is like oxygen/steroids for your plants. Provided all else in the environment is in check, you can close to double your yield (1.2 to 2+) as well as considerably up the quality. You may have noticed that, without CO2, at a certain stage of flower your plants begin to droop and prematurely yellow - they are starving/suffocating due to them having quickly absorbed what little ambient CO2 is available in the air; ambient CO2 levels are only 300-400ppm and you want 1500ppm ideally. Giving them this added boost will allow them to flourish properly with rapid growth until maturity ... the results are quite noticable. CO2 is really only needed when lights are on, from about day 7-10 of flower (when flower clusters begin to rapidly form and after initial stretch), until the end. If you can't achieve 1500ppm due to having an active exhaust, try adjusting the exhaust fan speed down to about 100cfm to achieve very slight negative pressure to keep smells in mostly (depending on your room size, this might not be a concern). If you exhaust 100cfm from a 200-300sqft room, you can easily achieve the proper CO2 levels needed. I'm aware of someone who uses a 6-burner generator with a 50-lb propane tank and they utilize about 7 pounds of propane daily (12 hrs) with a slight exhaust (8KW's, 3-ton AC, two-plus yield). I wouldn't recommend CO2 unless you have upwards of 2KW's worth of space/plants, as ambient levels are adequate for a single light, especially if you do have an exhaust.

 

[potlatch]

I apologize for jacking your thread, LG.
I wouldn't want to be consistantly spraying water on maturing plants for fear of mold.

Lazyman's CO2 for Dummies: https://www.icmag.com/ic/showthread.php?t=141160