C02 question? multi-stage plants same room

I got a 4X4 tent 600 hps and want to have a harvest every couple or so weeks. I'll be running C02, but heard not to run it during certain stages. I get the majority of my information from the interwebs and have read of people running C02 everyday, some running a ppm around 800 all the time, none at all. I know I could harvest switch new plants to 12 every 6 weeks but wanted it around 2 or 3.

to be honest i wouldnt waste time or cash with co2..not with a small grow..you would be better off clonning and getting more lights..and if possible expanding your grow room space for the time being..i don't know what your growing but u want fast plants with a good yield,and tight budds if your looking for $$$$..........

No need to co2 during veg stage IMO. Many seem to do this and claim great results, but ultimately it's not overly required during the growth period. Running co2 during flowering stage can provide a fantastically increased harvest. In-terms of exact PPM's I'm not of much help, but ultimately it seems many have their own opinions on this topic and they do what ever works for them. Trial and error has resulted in the decisions of many.
Best of luck

kepitgrn said:

to be honest i wouldnt waste time or cash with co2..not with a small grow..you would be better off clonning and getting more lights..and if possible expanding your grow room space for the time being..i don't know what your growing but u want fast plants with a good yield,and tight budds if your looking for $$$$..........

Click to expand...

Actually kepitgrn, there are fantastic cheap Co2 options in form of yeast and sugar which will work wonders in this situation. Plus if the guy wants to try it out and has the spare cash then it'll only benefit his plants and his knowledge.

I should add that I'm vegging the plants about 2 months before they go into the tent.