Ive heard a lot of different things about adding CO2. I want to add Co2 but I'm not sure about the temps and the carbs/sugars.

thanks

What are you adding CO2 too? temps can be higher but carbs/sugars? Your plant will just grow faster and eat more...

Please clarify what you are unsure about. Adding CO2 will allow the plant to maximize its ability to fix carbon. Generally, you shouldn't worry about CO2 unless you have everything else dialed in otherwise it isn't your limiting factor. Plants have the ability to use much more CO2 than is present in our atmosphere. However, that's like saying the human body can utilize much more protein than is in most everyday meals, but if muscle growth isn't already being pushed to the extreme by exercise, then the protein is just wasted.

Good analogy about the exercise.

Assuming I have everything dialed in, I have heard that temps should be slightly higher in order for the plant to make use of the CO2. I also heard that the plant will be metabolizing more, hence the growth, and will need more carbs to turn into sugars, much like humans. Do either of these claims have any credence? Thank you for the responses

Go to my journal in my sig I have well documented what C02 will do 5 foot tress in 30 days... With 2 lbs per ligt possible with a sealed room and co2..

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4x1000 +co2+9 strains+=good times 8x1000 watts CO2 Hydro grow Jacks Back

Ive seen your thread before, its fantastic. Unfortunately I must be developing ADD because I cant read every post and try to find my answer. Would you mind just summing it up for me? Also, did you have problems with heat? did you need an AC?

Would not grow with out CO2 I run a 24,000 btu ac unit my temps stay at 78 deg when its 100 out side I also vent my lights with air I pull in from the attic...You cannot run 1000 w fixtures and not have ac ..At least not where I live...

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4x1000 +co2+9 strains+=good times 8x1000 watts CO2 Hydro grow Jacks Back

CO2 is said to increase growth by up to 30% if you have adequate light and are growing hydroponic. Temp should be around 75 as ussual IIRC. Carbohyderates and sugars have nothing to do with it unless you are growing in soil and counting on microbial action to break these down. Anyway soil pretty much makes CO2 enrichment pointless. Plants generaly use nitrogen, phosphorous and potasium n-p-k as their main nutrients with other stuff in small amounts. The CO2 is used durring photosynthesis to ultimatly produce ATP and ultimatly growth IIRC but I'm not blowing the dust off my old biology texts to go more in depth on this. Hell just google photosynthesis. Anyway, if you have good lighting and a good hydro setup CO2 is great and it's cheap. My friend has been running the same 20lb tank in a 12X12 room for several weeks it's like $12 to fill.

Quite incorrect. Maybe you should dust off those old books or google it yourself.
I really don't understand why you would give out information if you really didn't know the answer and was just taking a stab at it.

Hydro or soil is irrelevant. The only difference between those two are the medium the roots are in. It has zero to do with photosynthesis and carbon fixation. Plants in soil use CO2 in the atmosphere in exactly the same way as hydro and the more CO2, the better it can take those carbon molecules and use them to make carbohydrates. If you notice, the macronutrients, NPK, do not include carbon. The plant needs CO2 no matter where it's growing and what kind of nutrients are being delivered at the root zone.

Well my major was molecular biology so I don't exactely need an explaination of why plants need CO2.

What you are missing is that when plants are grown indoors under artificial light and grown in soil the soil is such a limiting factor in the plants growth that it is essentially pointless to use CO2 because the plant isn't growing fast enough to take advantage of it.

Cervantes writes the same thing in the Grower's Bible FYI. But I guess he doesn't know what he is talking about either.