Product
Crystal Blue 5 Lb. Copper Sulfate Smart Crystals 1-Acre Coverage Area Moss & Algae Killer
Crystal Blue
BBD 120.37
Available to order
View at Do it Best Barbados
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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.