Co2

[Winkster1]

I havent seen much info on CO2 but am wondering about the guru'as here that use CO2 . What size holes do u put in the CO2 ring if using standard 1/4 hose circaling above the flowerin ebb and flood tray using a single 400 watt hps on a 2X 4 tray?
Thanks Wink

 

[PitViper]

1/8"

 

[ACGrow-Brain]

sounds like you have been watching a little Mr. Green eh? well why dont you think about this, what do you think would make your plants happy? and with CO2 I suggest investing in a ppm monitor and a timer to set it off........hope i could help