CrystalClear TrueBlue Pond and Lake Dye is formulated to provide a vibrant blue color. One single gal. of TrueBlue Dye will treat up to one surface acre 4 ft - 6 ft deep, for several months, depending on amount of rainfall and/or severity of sunlight. This highly concentrated dye should be used all year long. For year-long beauty, apply it in early spring. Water temperature has no effect on this aqua safe dye and should be applied monthly or as needed to maintain a true blue color all season long. Heavy rain and/or intense sunlight may require additional treatments of pond dye.

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