add more sugar or more yeast?

[bluezing]

was making a DIY co2 bottle just now.so far so gd.can see the air in the airtube slowly pushing down to the airstone oredi.btw...i forgot...for faster production of bubbles is add more sugar or more yeast?and also i heard that adding more of one type will shorten the "lifespan" of the DIY co2.anyone can explain to me which is which?thanx a bunch!

[sherchoo]

Adding yeast will increase the rate of fermentation thus higher CO2 produce. But this will also cause fermentation to exhaust quicker too.

[bluezing]

ahhh...icic...btw...the bubble is out...BUT...its like 2-3 bubbles/15 secs!!...my airstone is those 1 buck plastic multi colour type.haizz...i tink im gonna buy the nutrafin CO2 set.get that flipper as well.how much is this set?$25?

[chanck]

bluezing
i got a second nutrafin set for sale.
i bought it for the flipper.
have since chnaged to a reactor.
I still have the 3 pakcs of reagent and bottle.
Selling everything for $20.
air tubing is a bit short though.
PM me or sms 98450848 if you interested.
chee kin

[bclee]

Do take into consideration of concentration and toxity.

Too high concentration of sugar will inhibit the yeast. (Some fruits are preserved in heavy sugar syrup.)

As the yeast ferments the sugar, alcohol is formed. Yeast cannot survive in alcohol >11~12%. The fermentation will stop when the alcohol concentration reaced that level even when there is still sugar remaining.

BC