Is it possible to get lots of weed with no Co2?

[majik77]

i used the yeast/sugar method and i have noticed the buds were alot fuller and looked really healthy had about 1.4oz out of the one plant with using CFL lights from the local hardware store used the 42w CFL had 4 of em hooked up on it.


started with 3 plants but 2 turned hemie so i chopped em down and kept the female ^^

[sandman1959]

exhaling in the small closet each day for a bit, will supply the room with co2 adequately i think?

[E-N-D]

Cant be bothered with all the typing, heres a post I chucked on tenacity's GJ a while back:

Howdie Tenacity - Will give you a few pointers;

C02 enrichment is a decent idea, c02 enchances the amount or volume of vield by about 20%, I am not sure exactly where you are in the grow (week wize) however, it really cant hurt. A few concepts you could possibly apply are; c02 candles, Dry ice, LPG, heaters (pending gross area) and finally my favourite, good old soda stream.

C02 candles have their ups and downs, having a live flame in a room can often be dangerous, if you chose to go this way I would suggest buying some smokeless and odorless 99% pure wax paraffin candle and lamp liquid solution.

Dry ice is simply frozen C02, this method is great for small areas. One KG (Killogram) is the equivilant to one KG of C02. You would require one KG or thereabouts per day as one KG will last around 18Hrs and raise the PPM (Parts Per Million) To around 1300PPM. It is generally a good idea to place the dry ice into a polystyrene box or something similar. I would also suggest handling the Dry ice with gloves as its temprature is generally about 42 degress celcius, below zero.


LPG heaters suprisingly also provide a good source of C02, the ignition of LPG (Liguified Petroleum Gas) returns C02. Therefore, if your home climate is cold switch on an LPG heater, warm your home and deliver the C02 to your plants. LPG heating is relatively cost effective as it does not use electricity to function. The primary costs are merely purchacing a heater and paying for LPG refills (which will last many, many hours), I guess the downside would be the increase in heat.

Soda stream is also a good idea, soda stream machines use C02 to carbonate the water. Buy yourself a soda stream machine. Put your Per Hydra (PH) balanced water, plain water not water with nutrient additives into the machine, carbonate the water, put it into a mist sprayer and then spray over the leaves. For this to be effective you need to turn your ventilation down or off for a period. Only practice this method while the lights are running as the plants can not intake the C02 in any other period.

C02 in general is currently rising due to the level of combustion of fossil fuels. The average C02 levels in the air are about 340PPM. For enhanced plant cellular construction the suggested PPM level is 1500PPM or thereabouts. Raising the of C02 about 2000PPM becomes toxic to the plant and 5000PPM toxic to humans. So, with the aim to increase the C02 levels, high enough to truely see a difference in the plant a air tight construction is generally nessacary.

[Chronitron]

What do you think about soda water? Taking a 2 liter bottle of soda water and opening it in a small grow room.

[E-N-D]

Personally, a tank and a reg system is the way to go, it all depends what you are trying to achieve at the end of the day though..

I think the major issue of just chucking a bottle of something 'that makes' C02 is you have no proper intsruments to acurately quantify the amount of production, I just don't see the point. In addition to that, alternate methods seem cheap to begin with, over time a key of dry ice a day really adds up.. Not to mention the inconvenience.

If your going to do it, do it right. Air tight, regulated / timed C02 induction, spend the money.. you wont regret it.

But more, on topic, I wouldn't bother dude. In a small time unit for personal amounts you wont really notice the difference, maybe a couple tighter nugs..?

[joey19]

The yeast and sugar method is a good way to produce CO2 for plants.

Another method is to use hydrochloric acid (aka muriatic acid found at your local hardware store) and calcium carbonate (aka white marble) and mix in a little water to dilute the muriatic acid a bit. This reaction will produce large amounts of carbon dioxide in a small amount of time, so you might want to regulate the rate of the reaction by adding water.

This is epically good for indoor growing since the air in a closet or room is stagnant, unless ventilated from the outside. But on the contrary, you don't want to produce too much CO2 because it may hurt the plant.

Hope this helps.

[CryptoKronic]

i'm sure your reply is much help to him over a year later.....

[Tito 14]

What do you guys think about simply always using the soda-water method whenever humidity drops too low? It cant hurt right?

I actually have plenty of available CO2 in a compressed form. Im thinking about just making fittings to make a kit similar to this:

All you do is put the liquid in the bottle leaving a little room on the top (couple of inches is fine) then put on Carbonator cap, squeeze out excess air and turn on the CO2. Keep pressure between 30 and 40 PSI and shake bottle for 1 minute. This will carbonate your beverage! The key is getting the beverage very cold before carbonating.

[2Lazy]

What is with you guys and carbonated water? You need CO2 for your plants to breathe, they aren't aquatic...

Anyway, CO2 supplementation only works well in closed system environments where a room acts as an atmosphere buffer; cooling and enriching it before being drawn back into the growing room. The yeast and sugar method is alright because it constantly releases the gas so it's the best suited for a ventilated grow. Dry Ice sucks, it just melts too fast and the styrofoam ice chests give off this funky smell.

Every breath you exhale has about 1 gram of CO2 in it. Just spend a couple minutes with your plants every day, you are a CO2 generating machine!

[2Lazy]

What is with you guys and carbonated water? You need CO2 for your plants to breathe, they aren't aquatic...

Anyway, CO2 supplementation only works well in closed system environments where a room acts as an atmosphere buffer; cooling and enriching it before being drawn back into the growing room. The yeast and sugar method is alright because it constantly releases the gas so it's the best suited for a ventilated grow. Dry Ice sucks, it just melts too fast and the styrofoam ice chests give off this funky smell.

Every breath you exhale has about 1 gram of CO2 in it. Just spend a couple minutes with your plants every day, you are a CO2 generating machine!

[broadside]

You could brew some beer and keep the bucket in the room, or make wine and keep the demijohns in the room. Kills two birds with one stone.

[joey19]

All plants, weed or not, breath in carbon dioxide, and, in turn, the plants release oxygen. In closed systems such as a closet or room, the amount of carbon dioxide in the atmosphere becomes critical. Too much carbon dioxide or too little carbon dioxide can kill any plant growing in that medium. If you only have a few plants, such as 3 or 4, the necessity of carbon dioxide may not be of a great concern. But if you are growing somewhere around 7 or more, a good carbon dioxide supply is a must! You SHOULD NOT feed your marijuana plants carbonated water, this will kill them. Plants need a slow continuous source of CO2. If you feed the plant with carbonated water, it will spike the pH levels (stressing your plant and eventually killing it).

[Tito 14]

Originally Posted by joey19

All plants, weed or not, breath in carbon dioxide, and, in turn, the plants release oxygen. In closed systems such as a closet or room, the amount of carbon dioxide in the atmosphere becomes critical. Too much carbon dioxide or too little carbon dioxide can kill any plant growing in that medium. If you only have a few plants, such as 3 or 4, the necessity of carbon dioxide may not be of a great concern. But if you are growing somewhere around 7 or more, a good carbon dioxide supply is a must! You SHOULD NOT feed your marijuana plants carbonated water, this will kill them. Plants need a slow continuous source of CO2. If you feed the plant with carbonated water, it will spike the pH levels (stressing your plant and eventually killing it).

Originally Posted by E-N-D

Soda stream is also a good idea, soda stream machines use C02 to carbonate the water. Buy yourself a soda stream machine. Put your Per Hydra (PH) balanced water, plain water not water with nutrient additives into the machine, carbonate the water, put it into a mist sprayer and then spray over the leaves. For this to be effective you need to turn your ventilation down or off for a period. Only practice this method while the lights are running as the plants can not intake the C02 in any other period.

Anyone want to clarify? I dont plan on watering the soil with co2 water, just misting it on to raise humidity levels when necessary.

If that is indeed a bad idea, what about the same method described in my picture, but without the water. Just empty a bottle or bag, fill it with CO2 (this way its not pressurized), and open it in your grow box. Too much?

[joey19]

I would advise you not to use the system with the compressed CO2 and 2 liter bottle. When you introduce carbon dioxide into water the carbon dioxide spontaneously converts from CO2 to H2CO3 (carbonic acid). This will make the water acidic which you don't want (example: soda water). Carbonic acid will cause the pH levels in your weed plant to drop. This will eventually kill the plant.

Regular distilled water has a pH of 7 which is neutral. This is why you should try to use distilled water to water your plants. The best way to increase the humidity would be to purchase a humidity generator. This will allow you to make the room humid without the carbon dioxide being mixed with the water. There are many ways in which you can introduce CO2 into the atmosphere. I discussed some of them in my previous entries.

[Tito 14]

Okay sounds good. Im not on any kind of scale to need or justify a humidity generator. But seeing how as I have a few CO2 tanks laying around, would it be a bad idea to fill one up and just release some raw CO2 into the air in the grow box every once in a while?