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Brand Name: Crystal Blue
*Sub Brand: Smart Crystals
*Product Type: Algae Control
*Container Size: 80 oz.
*Color: Blue
*Product Form: Granule
*Controls most species of algae like filamentous or string algae
* Always treat 1/2 of the pond at a time to avoid killing too much algae and depleting the water of oxygen
* Copper sulfate can be applied in one of three different ways: broadcast crystals, pl