Quote Originally Posted by stinkyattic
-First hydro grow, you're going to be in troubleshooting mode, and CO2 isn't really useful until you have other things totally under control.
-When you DO get things sorted, a tank/regulator is by far the most efficient way to add the stuff.
I know this from experience save your money for now. I don't even use my setup anymore, its not worth the hassle.