"Barrreport.com" has an excellent article called "Non CO2 Methods" in the public (free) section with tips at the end on how to adapt for Excel. You could also do a search here under Excel or peruse the low tech forum.
Good Luck, Bill
Evergreen said:
Could someone point me to information on this method. My son's tank is recieving all my trimmings, so better prepare his tank.
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