Got those co² tablets... they do work good on VEG but I didn't notice any differance while blossoming.
britewire Reviewed by britewire on . Co2 vs Ventalition Which is better which is cheaper. Having a good ventalition system or having Co2. You really only need ventalition if you have heating problems or want your lights closer to your plants. If you have ventilation you don't need C02. If you have C02 you don't need ventilation. So which would be cheaper which would be better. Rating: 5