How can I ween my tank off co2?

[wtusa17]

I have a 29 gallon tank with co2. I just set up a 20 long dirted tank and it has way more demanding plants such as dhg and Monte Carlo. How should I go about taking my 29 gallon off the co2 and putting my 20 long on it?

 

[KevinZ]

What kind of CO2 Injection you use ?
Co2 Tank / DiY ?
Some Co2 Tank Regulator has more than 1 tube. You can pluck in Oxygen with Diffuser & Valve Check and you are good to go .
(kinda confuse by the thread question ^^)

 

[wtusa17]

What kind of CO2 Injection you use ?
Co2 Tank / DiY ?
Some Co2 Tank Regulator has more than 1 tube. You can pluck in Oxygen with Diffuser & Valve Check and you are good to go .
(kinda confuse by the thread question ^^)

Pressurized. The tanks are across the room from each other tho.