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Copper Sulfate Crystals
Copper Sulfate is a good alternative to other algaecides. Works in many different water conditions, including hard water. Copper Sulfate will kill on contact.
Works great on Chara & Filementous Alage
Available in 5 pound containers
Apply 2-6 pounds of Copper Sulfate per 1 acre ft of water for best results. Crystals can also be diluted with pond water and sprayed directly onto floating mats of Algae.