Very cool idea Avalon. Any thoughts as how this compares with other types of CO2 diffusion methods?
I would think that using PVC would be better than the soft tubing because that would allow for an easier time getting the same sized holes though out the pipe.
Also how would it affect the amount of CO2 getting in the water if you placed the holes along the bottom of the pipe facing down? This would ensure that very little gas would escape into the water, giving more time for the water to become saturated with it. I don't know, because if too much gas began to collect and the bubbles become to large then the water isn't going to be able to absorb it as well.