Originally Posted by theatermusic87
Please let us know how a mix of yeast works for you, might be a bit of a solution to the length of time it produces drawback with yeast co2
Yes I will. My first batch (whole pkg of bread yeast) lasted just 2 weeks and my 2nd batch only about the same (I expected 3+ weeks from a 4L mix. Given a standard sugar mix (1c per liter) we conclude that more yeast produces a higher bps for a shorter duration and less yeast produces a lower bps for a longer period. But then there's temperature and the alcohol factor. I've also read that there may be value in sterilizing the mix before adding the yeast so I will likely boil the water, mix the sugar and cool to 105F~ and add the yeast.
As for temperature, after I test the 50/50 yeast mix, I just might try using a heat mat (same as used for starting plants) under the canisters to determine the effect. This could take the mix 10F+ above room temperature. Then again, this may just make the yeast slightly more active resulting in a slightly higher bps for a shorter period.
I've read about using raw sugar, molasses along with sugar, corn starch in the mix, as well as using a gelatin mix. I'm not sure how far I want to experiment with these.
The objective of course is to maintain a steady 1bps bubble count for as long as possible. With some overlap of the two containers, this should provide a fairly stable delivery of CO2.
I also need to experiment with my bubble bar at night. I've been running in from midnight to 6am for fear of gassing the fish at night. This may be counter productive in the the little CO2 being added is off gassed every night. Perhaps I'll cut back the time the air pump is on and see what happens?
Then on the tank side, there's the question of light and ferts - I think my head will soon explode! lol