EverythingISayIsPRETEND
Well-Known Member
When using 2 liter bottles half filled with sugar water and yeast(to produce Co2), is there any measurements at all that should be followed for how much sugar, and yeast?
You will likely not get enough CO2 off your bottle to be photosynthetically useful. That being said, use 16 oz of sugar in the 2 liter bottle, add warm water 3/4 of the way up and shake until the sugar is dissolved, then pour a pack of bakers yeast in it with another little shake. Do not fill you bottle up all the way! This will give roughly a 7 day supply of CO2 in minute amounts.
Drill a hole in the cap of the bottle and insert a 1/4 inch drip line or tubing. Route this line above you plant since CO2 is heavier that air and will flow downwards.
You can get a useful amount of CO2 for a small grow (say 2 square feet) if you use a 24 hour turbo yeast. This type of yeast can handle a higher alcohol content and more efficiently consumes the sugar but you need a pound of sugar a day per bottle.
Hope this helps!
Yeah, I don't mean to ruin anyone's day but I honestly don't think it's worth it. Save your money and get a 20 pound CO2 tank is what I use and recommend. They cost $80 or so and about $15 to refill. If you buy a smaller 5 pound tank you'll likely end up getting a 20 pound tank to replace it. They cost about the same to refill.
Plants will ONLY take in CO2 when exposed to light and not when convered with a trash bag. It's also a continuous process so that idea of giving a plant a heavy shot of CO2 and thinking that it's going to help just is not so.
What he means is, a short shot of cO2 on your plants isn't going to effect your grow.good advice, so you continuously give em co2 from the tanks and not just occasionally?
unless you're running a sealed room, or you have no way (at all) of exchanging the air in your grow area, supplemental co2 is a waste. the conditions needed for the plant to use/benefit from the co2 will most likely not be met. the stomata decides how much co2 is used. unless the required temps are reached (which cause the stomata to open wider) the plant can't utilize the additional co2.