Pond & Lake Supplies

Copper Sulfate Crystals

Seed Barn


Copper Sulfate Crystals 99.8

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

 Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month. 

Customer Reviews

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Based on 5 reviews 4.8/
5
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  • R
    Russell J. R. J. Russell J.
    21-12-2022

    Super store

    Product received quickly.

  • K
    Kristine Williams K. W. Kristine W. us
    24-11-2022

    Excellent

    Can always count Seed World for great service. Thanks

  • c
    carolyn sommer C. S. carolyn s. nl
    16-10-2022

    Fast delivery

    Product was as ordered, promptly sent, received in good condition

  • J
    Joseph Cirello J. C. Joseph C. us
    25-09-2022

    Copper sulfate

    Didn’t get a chance to check it out yet

  • M
    Michael Chhay M. C. Michael C. us
    09-09-2022

    Switch shipping method

    I selected priority mail but you sent the package via first class mail.

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