Air bubbles with CO2 system??????????

[divemasterjim]

If I have a Co2 set up in my tank, does having air bubbles affect it? Do I need air bubbles?

 

[rich311k]

Yes the air bubbles cause surface agitation and gas off the CO2. It is best not run them at east while the lights are on. You may need to run them at night if you fish start gasping for air at the water surface before lights on.