Whats that for

[Puffin Billy]

I was over at a mates place a few months ago, and he was showing me his nice grow shed. He had some really large gas type bottles bottles, that I think he said contained co2 or somethinf like that. What was he going on about, and how do they make the plants grow better. He's packed up now and moved north so I can't ask him.

[tony2wheelsgood]

it's a technique to get more growth out of the plants. you run the temperature at around 90F instead of 75 but it's not simple. your growroom needs to be sealed with extraction and intake fans and with a setup to release CO2 at the right rate at the right time.

 

if you google carbon dioxide hydroponics youll get all you need. (probably get more on the google uk engine, i think we do more hydro over here than you guys)