1. Fill canister with regular granulated sugar to the first line.
2. Add 1/2 teaspoon of dried yeast (available from supermarket).
3. No need for "Stabiliser" unless you have v. soft tap water.
4. Top up to second line with tepid (approx 30C) tap water.
5. Stir.
6. Fix lid tightly.
7. Attach tubing tightly.
8. Watch the bubbles appear after 10 to 30 minutes.
Ambient temp. affects bubble rate, cold = less output, warm = more output.
More yeast = more CO2 for shorter time.
Less yeast = less CO2 for longer time.
1 teaspoon of yeast will give you around 30 bubbles per min. for about 7 days. This should be good for up to a 100 l. / 30 gal. tank.
Aim for 30ppm CO2. Change mixture regularly to avoid unstable/low CO2, this causes algae.
Clean ladders may clog bubbles up for a while. The bubbles will run up smooth after a few hours or so.
Heck, I may even pin this!