I would agree that you will get much more plant production if you swapped out the actinic...BUT I am also in agreement that the actinic makes things look awesome so I suppose I am not much help there.Production over aesthetics would be the right thing to do so swap out the bulb and blast the CO2 but check your PH frequently until you have things in check.Also don't forget that CO2 will break things down over time and thats why you want to get Polyethylene tubing if you can.