I have my CO2 diffusing through a wooden airstone next to the intake of my eheim filter, but the bubbles don't seem to be getting sucked inside, they're still swirling up to the surface. I was thinking of putting the airstone inside the intake basket. Here's how it would work: remove intake basket, attach the CO2 out put to a piece of airline tubing, pull the tubing through the basket, attach a smaller white airstone to the end, replace basket. Would that work? Is there a better idea? I know I can diffuse through a powerhead, but it seems silly to add another piece of equipment if what I have will do the job.