"Harry Muscle" wrote:

Wouldn't it be about a lb of sugar for each batch, which can last anywhere
from 2-4 weeks?

When I was making DIY CO2, I used 1.5 just cups of sugar per batch,
and half a packet of yeast.

Very cheap. Especially if your wife makes a lot of cookies and doesn't
connect the sugar disappearance with your fish tanks, which means you
only have to buy the yeast


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