When to add CO2

I've got one crop harvested, excellent yield. Using hydro, buckets with bubblers and a 400 watt light.

Got 2 new girls very well rooted, 16" tall
and looking beautiful.

When should I add CO2 therapy? I am going to use the 2-liter bottle technique before I invest in a tank.

Any suggestions?

Save yourself the effort on that 2-liter bottle thing. CO2 is useless unless you have a nice sealed room, and one the spot climate control.

s0high said:

Save yourself the effort on that 2-liter bottle thing. CO2 is useless unless you have a nice sealed room, and one the spot climate control.

Click to expand...

Thank you... that's the kind of solid feedback I need. I was wondering how to keep the whispy CO2 on the plants if my exhaust is going along with a fan to keep the heat down.

Thanks...
Happy growing!

GodofGraphics said:

Thank you... that's the kind of solid feedback I need. I was wondering how to keep the whispy CO2 on the plants if my exhaust is going along with a fan to keep the heat down.

Thanks...
Happy growing!

Click to expand...

Whats the temp normally at?