"Dinky" wrote in message
news

"Izuan Wahab" wrote in message
...
How long does a bottle last? What is the dosage recomanded for a 55G
tank?


A yeast bottle lasts a couple weeks. IME, a 55 gallon is too large to be
significantly affected by DIY CO2. All I was able to do was lower my PH
about .01, and no noticeable CO2 increase, according to Chuck's
calculator.


Yeah I'm not sure about a 55. I had two bottles hooked up to my 77g and it
did nothing so it's not on a pressure system. I run two bottles on my 33 g
heavily planted tank and it works well. I would try 2 bottles and see how it
goes.

Rick