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Re: DIY CO2 for 10g
> My 2 liter DIY CO2 setup provides the right amount of CO2 for my 20G tank.
> If I set up a 10, what would be the best way to cut the CO2 production
> appropriately? Find a 1 liter bottle and cut everything in half? Less
> yeast or less sugar in the same-sized container? Thanks for any
I have experimented with using smaller bottles, down to 16 oz for my CO2
generators, but found them to be less than satisfactory because they are
short lived. I eventually standardized on 2 quart glass orange juice bottles
for everything (they WON'T collapse and dump their contents into the tank as
do thin Pepsi bottles). By adjusting the yeast, I can easily control the
amount of CO2. I put in 1-3/4 cup sugar in every bottle, then add just a
little less than 1/4 tsp yeast for 10g tanks, 1/4 to 1/2 tsp for 20g, 1/2-3/4
tsp for 30g, and about 3/4 to perhaps 1 tsp for a 55g. This seems to work
out well for me, giving me around 15-17 ppm CO2 when the bottle is new.
About 14 days later on the large tanks, and about 21 days later for the
smaller tanks, the CO2 is down to about 6 or 7 ppm, at which time I recharge
the bottle. Works for me. Your mileage may vary.