No, only one gallon of total mix, Greg. Not sure if I typed something incorrectly or not, but just used the gallon of water and 10 oz. of the Weedtrine, kind of a compromise between what you and Pond Frog were suggesting. I'll adjust as needed when I see what effect this treatment has. Yeah, 12 gallons of Weedtrine in a small pond would sure be a bunch, huh?!