Home / Lawn & Garden / Crystal Blue 5 Lb. Copper Sulfate Smart Crystals 1-Acre Coverage Area Moss & Algae Killer

Crystal Blue 5 Lb. Copper Sulfate Smart Crystals 1-Acre Coverage Area Moss & Algae Killer

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  • Detail

    Effectively controls most types of algae. Apply by casting copper crystals over floating algae mats, dissolve in water, and spray, or place crystals in porous bag and drag behind boat. Treat a portion of the pond at a time to prevent oxygen depletion.

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