Quote Originally Posted by Dorje113
I'm trying out a Plug n Grow IGS-220 Co2/Temp/RH controller with good success right now. I doubt I'd do Co2 without a controller after trying one, if the IGS-220 or similar units are too expensive I've seen Co2 controllers on ebay for under $300, same as the CAP ppm3 that retails for $589 it looks like. You could also rig a relay to turn off the co2 when the exhaust fan comes on to save co2. The 3 lbs/light I've gotten was with natural gas co2 generators, but also with constant venting so co2 levels never got close to ideal...
yea thats the problem,i have a tank and a cap reg but no controller.i hooked it up and after a day i said f this i'll wait till i can set it up right.so atleast i have the basics.that was 2 months ago so im hoping to use it soon...