I purchased a C02 kit from Hagen at the petstore about 2 weeks ago. It has the fermentation bottle. I followed the directions and set up the "bubble counter" inside the aquarium. However, I only see a few little bubbles every few hours come out of the hose and cling to the "counter"/rack, then they disappear eventually. Is this how it's supposed to work? I guess I had been envisioning something like the air bubbles my pump produces, but perhaps I had it all wrong. Does this sound like its working? The instructions say that if the bubbles don't stay in the counter, something's wrong, but it doesn't say how many bubbles to expect at a time. I've never seen more than maybe 6-7 at most at a time. Thanks!!