I am currently in the process of a DIY yeast CO2 system. I was just reding up on some stuff, and I thought I saw somewhere that you could do this, but my only question is how? Would you just drill a hole in the intake to the filter and put the tubing there so the impeller would such the CO2 bubbles up into the filter and dissolve them that way? Or are you not even supposed to use a powered filter. My filter is a cheap Top Fin filter, the kind that such water in through a tube and pour it back into the tank. So my question is... will this work?! Suggestions please...