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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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 6 - Sep 11

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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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    • Delivery to the USA:
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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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    Jeniffer castro
    Dallas, US
    ★★★★★ 5
    Sturdy & easy to move around
    Its solid & sturdy. It does exactly what it’s supposed to. You have the option to fill it up with water or sand , I choose water. It holds the umbrella in place. The wheels and handle make it really easy to move around, which is a huge plus. It fits perfectly and feels very well made. Great addition for my pool area!
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    Reviewed in the United States on April 18, 2026
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    HV
    Lexington, US
    ★★★★★ 5
    Heavy-Duty Base with Convenient Mobility
    This umbrella base does exactly what it’s supposed to—keeps the umbrella stable while still being easy to move around when needed. Once filled with water/sand, it feels solid and secure even on slightly windy days, which gives peace of mind. The built-in wheels are a standout feature. Moving the base across the patio is smooth and doesn’t require much effort. The handle placement is well thought out, making repositioning quick and hassle-free. Overall, it’s a great balance of stability and convenience. Highly recommend if you want a sturdy base without sacrificing mobility.
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    Reviewed in the United States on March 31, 2026
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    Chiranjeev Shah
    Birmingham, US
    ★★★★★ 5
    The base that fits!
    Finally, easy to put together and the right fit just before summer. It was extra windy so I put extra weight.
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    Reviewed in the United States on March 23, 2026
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    colonel227
    New York, US
    ★★★★★ 5
    Holds up in high winds
    Easy set up and holds umbrella in high winds
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    Reviewed in the United States on April 5, 2026
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    Bela.blue.reviews
    Carnegie, US
    ★★★★★ 5
    Sturdy umbrella base
    Sturdy umbrella base. Heavy duty and should not blow over in the wind. Will hold up for years.
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    Reviewed in the United States on March 23, 2026

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