SKU: 68355918514
copper sulfate aquatic herbicide

copper sulfate aquatic herbicide Crystal Blue Copper Sulfate 5 lb

Sale price$19.04 Regular price$21.15
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Ships within 48 hours · Estimated delivery Oct 17 - Oct 22

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Description

copper sulfate aquatic herbicide Crystal Blue Copper Sulfate 5 lbCrystal Blue Copper Sulfate is a great pond algae control product for filamentous or string algae. Copper sulfate should be used as a pond algae treatment on actively growing algae in water temperature above 60F. When getting rid of algae in a pond, it is always important to treat 1 2 of the pond algae at a time to avoid killing too much algae and depleting the water of oxygen. Copper sulfate is safe for most varieties of fish (see restrictions below)

Crystal Blue Copper Sulfate is a great pond algae control product for filamentous or string algae.  Copper sulfate should be used as a pond algae treatment on actively growing algae in water temperature above 60F.  When getting rid of algae in a pond, it is always important to treat 1/2 of the pond algae at a time to avoid killing too much algae and depleting the water of oxygen.  Copper sulfate is safe for most varieties of fish (see restrictions below) when used properly.  Granular copper can be applied in one of three different ways: broadcast crystals, place crystals in a burlap bag and drag behind boat, or dissolve crystals and spray.  The application method we recommend is to dissolve the crystals in hot water and spray actively growing algae.

Treatment Area - Smart Crystals

  • 2,500 square feet - 0.3lbs
  • 5,000 square feet - 0.6lbs
  • 10,000 square feet - 1.2lbs
  • 15,000 square feet - 1.8lbs

*Above rates are recommendations.  Always be sure to read the product label before you apply your pond algae treatment.

  • Treat every 14 days
  • Apply by casting granulars, dragging behind boat in burlap, or dissolve and spray
  • Do Not Use with KOI or Goldfish
    Shipping Notes
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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
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    SKU: 68355918514

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    Lisa Maurstad
    West Palm Beach, US
    ★★★★★ 5
    Solid product
    Color: 2-Speed Rechargeable Set with Base
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    Reviewed in the United States on May 13, 2026
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    RealPro
    Alexandria, US
    ★★★★★ 4
    Works well.
    Color: 2-Speed Rechargeable Set with Base
    Close to 5 stars. Only minor complaint is somewhat shorter battery life then expected. But since it is rechargeable, not a big deal. Like the adjustable grinder and the clear container so you can see how much it has.
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    Reviewed in the United States on March 18, 2026
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    KJM
    Draper, US
    ★★★★★ 5
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    Color: 2-Speed Rechargeable Set with Base
    Great salt and pepper set! I love that it has a light that makes it easier to see how much is coming out. Very easy to use, easy to fill, nice selection of grind sizes. It is also nice that it has a base to hold it because there is a very small amount of salt that comes off the bottom so it keeps it from going on the counter while not in use - it's not leaking, just leftover residue from the grind you have just finished.
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    Reviewed in the United States on April 16, 2025
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    Alexander
    Natrona Heights, US
    ★★★★★ 1
    They’re nice… if they work…
    Color: 2-Speed Rechargeable Set with Base
    I ordered four of these grinders and two of them broke down while a third never started up. I am honestly disappointed in the failure rate of these otherwise nice grinders. If only one grinder in a two-pack failed, I would’ve just taken it on the chin and moved on. But three out of four total is unacceptable. I like the way they look, and the grind speed and settings are nice. But there’s a serious durability problem they need to fix.
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    Reviewed in the United States on August 24, 2025
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    foodandart
    San Leandro, US
    ★★★★★ 5
    Excellent quality.
    Color: 2-Speed Rechargeable Set with Base
    These are great! They operate by pressing the top surface. Best i've had, and I've had a few! Very happy.
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    Reviewed in the United States on February 8, 2026

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