Originally Posted by AquaHokie
If you have the sponge on the bubbles will float to the surface pretty much right above the reactor. If you take it off the bubbles fly all over the place. I orginally had the sponge on with the bubbles floating up to the output on my canister filter, but I ended up taking the sponge off and it seems to do a better job with increasing co2 levels.
That makes the design even more simple! Having tiny CO2 bubbles flying everywhere is the goal of a good CO2 mist system.