I hooked it up yesterday to my 55 gallon tank. I have a topfin 60 H.O.T filter and I placed an airstone inside the filter near the impellar, every plant in my tank is pearling and leaking 02. The floss in my filter is covered with C02 bubbles, so far I think it is working well. My mixture is 1 3/4 cups sugar 6 cups water and 1 teaspoon yeast. How long will this mixture produce C02? will the rate drop quickly after a couple of days?