Re: [APD] c02 in a 5.5

[Vaughn Hopkins <hoppy1 at surewest_net>]

When I used DIY yeast CO2 I used a 3 liter bottle with 3 cups sugar and 
3/8 tsp of yeast, plus nothing else.  I got that recipe from those who 
used 2 liter bottles with 2 cups sugar and 1/4 tsp yeast (regular bread 
yeast).  It gave me a bubble about every second and lasted a couple of 
weeks.  I think you have far too much yeast in your bottle.  In fact 
for such a small tank I would use 1/8 tsp yeast, two cups sugar and no 
baking soda or salt.  The quantity of  yeast controls how fast the CO2 
is produced and the amount of sugar determines roughly how long it 
lasts.  At least that is how I understood it.


On Wednesday, June 15, 2005, at 10:07 AM, James H wrote:

> im injecting co2 through the yeast method into my 5.5g tank and im
> having problems with the co2 being at too high levels and its starting
> to stress the fish especially my cories.  im using a 2l pop bottle
> with 3/4c sugar 1/2tsp yeast and 1/4tsp baking soda and a pinch of
> salt, without the salt i get way too much co2 a constant stream infact
> and if i add anymore than a pinch i get no co2 at all, im wondering if
> anyone knows how to lower the production or should i get a smaller
> bottle and reduce the recipe?
> James
>
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