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Re: Alternative source of CO2
What with all the stories exploding fermenter bottles and rocketing CO2
tanks, you may want to consider another CO2 source---yourself. You breathe
out two or three percent CO2 all the time, and it can be collected and
bubbled into the tank with an airstone. I breathe into a plastic garbage
bag, and then pump the air into my plant tanks every other day. The pH
typically goes down to 6.5 to 6.7. One bag does 3 fifteen gallon tanks.
The CO2 is free, and you can't overdose your tanks, at least, I have never
seen any ill effects on livebearers and zebrafish.
Think about it!
Paul Krombholz