"Harry Muscle" wrote in message
...
What's your average cost for each batch of DIY CO2 mixture? How often do
you mix a new one. What size is your tank?

I'm just trying to decide if there's big price difference between going
DIY
CO2 versus Flourish Excel (which is $17.99US for a 8-12 month supply).

Thanks,
Harry




more importantly, what is the size of your tank Harry?. DIY is cheap enough.
I mix 2 cups of sugar with about 1 1/2 liters of water, 1/4 tsp of yeast and
a pinch of baking soda. The problem with DIY is somewhat unstable PH levels
as the CO2 productions falls off from the initial new batch so your PH
raises or lowers depending onthe amount of CO2 going into the tank. I found
that many recommend using a 2 liter soda bottle however I am presently using
2 x 1 gallon glass jugs in a 33 g heavily planted tank. One bottle wouldn't
do much of anything.

Rick