yeah, I've had that happen on my air stone already... and one of the glass ones clogged when I let it sit for a weekend not running. after a bleaching and a rinse, it seems to let some flow through, but not compared to how it was new, 2 weeks ago.
so how does the hagen finally diffuse co2? I understand he bubbles rise throught he marble trap, but what happens at the top, does it not have a stone of some sort?
so how does the hagen finally diffuse co2? I understand he bubbles rise throught he marble trap, but what happens at the top, does it not have a stone of some sort?