SKU: 7786296685
copper sulfate herbicide

copper sulfate herbicide Crystal Blue Copper Sulfate 5 lb

Sale price$24.43 Regular price$27.15
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

copper sulfate herbicide Crystal Blue Copper Sulfate 5 lbCopper Sulfate Smart Crystals are the perfect solution for eliminating filamentous or string algae. At water temperatures of 60F or higher, it is safe to use on most varieties of fish (with some restrictions). This product is best applied in three ways: broadcasting, burlap bag dragging, or hot water spraying. We particularly suggest dissolving the crystals in hot water and then spraying the actively growing algae. Remember, always treat just half of

Copper Sulfate Smart Crystals are the perfect solution for eliminating filamentous or string algae. At water temperatures of 60F or higher, it is safe to use on most varieties of fish (with some restrictions). This product is best applied in three ways: broadcasting, burlap bag dragging, or hot-water spraying. We particularly suggest dissolving the crystals in hot water and then spraying the actively growing algae. Remember, always treat just half of the pond to prevent oxygen depletion due to algae death! 

This product is classified as state-restricted use in CT, NJ, for sale and use only by licensed applicators (your entire order will manually be canceled if you live in a listed state and add this product to the cart without a license number). Not for sale in CA. Not for sale in NY.

  • 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 granules, dragging behind the boat in burlap, or dissolving and spraying
  • Do Not Use Copper Sulfate Pond Algae Control with KOI or Goldfish

        View Product Label
        View SDS for Copper Sulfate

        Copper Sulfate Pond Algae Control Shipping Restrictions

        This product has shipping restrictions and can only be shipped to the following places: IN, AL, AZ, AK, CA, CO, DE, D.C., FL, GA, ID, IL, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MS, MT, NE, NA, NH, NM, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, WA, WV, WI, and WY.

        Shipping Notes
        • Free Standard Shipping on $100+ Orders to the USA.
        • Except Preorder products are shipped in 48 hours.
        • Delivery to the USA:
        1. Standard Shipping : 3-10 business days
        • If time is of the essence, please consider selecting expedited delivery for faster service.
        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]
        • Please click here for more details>>> Return & Exchange Policy
        SKU: 7786296685

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        4.6 ★★★★★
        Based on 18 reviews
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        D
        Verified Purchase
        Duncan Souza
        Bozeman, US
        ★★★★★ 4
        Pump is worthless
        Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula
        The sealant is good. The gallon pump is a joke. Pump stopped working 4 pumps in. Went and got another replacement pump from automotive store, also broke after 4 pumps. Ended up cleaning out an old Slime bottle and pouring in the flat out sealant in the slime bottle, so I could actually get it in my tires.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on May 30, 2026
        A
        Verified Purchase
        Amazon Customer
        Lowell, US
        ★★★★★ 1
        There seems to be a chronic problem with the provided dispensing pump.
        Size: 1 Gallon + Tool, Set name: Off-Road Formula
        I looked at online reviews of the product performance and was impressed by its purported ability seal tire punctures. While the product may (or may not) perform well, the provided dispensing pump is pathetically unsuited for the application and it is impossible to clear the pump once the material clogs the small dispensing port. Some of the reviews indicated this but i assumed that they were not very mechanical inclined customers. The product, by design, has particulates, of varying sizes, suspended in the liquid sealant. The port on pump is very small and easily becomes blocked with the sealant and particulates that cannot be cleared; even when following the instructions to do so. It is very irresponsible for the manufacturer to continue selling this item with inevitable relative failure of the pump as this is the only way to get the sealant into a tire.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on January 2, 2025
        V
        Verified Purchase
        VT
        Chelsea, US
        ★★★★★ 5
        Good for ebike tires
        Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula
        Got it for my son’s older ebike that my wife rides now. He kept on popping tubes, maybe because of his weight. Anyhow, I fixed it up for my wife and put some FlatOut in it to prevent flats. Seems to work so far. Got the off road FlatOut for my ebike’s fat tires. Easy to add to the tires. The pump clogs up but it’s easy to clean. I will always add this to all tires moving forward!
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on April 4, 2026
        B
        Verified Purchase
        Brian ward
        Lake Worth, US
        ★★★★★ 5
        Easy to use and works great
        Size: 1 Gallon + Tool, Set name: Off-Road Formula
        Easy to use
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on April 22, 2026
        H
        Verified Purchase
        Hill
        Boise, US
        ★★★★★ 5
        Cool stuff
        Bought a Swisher rough cut mower to pull behind the Yamaha Rhino to cut our 6 acre field. We were cutting down 8 foot trees, no problem, but one tree had big thorns on it and destroyed the rear tires of the Rhino. Replaced all tires, and since we still have to mow the field I opted for adding this to the tires. Very easy to use, and now I have the confidence that if we get a puncture we will still have air. Also bought their flat fix kit that comes with CO2 cartridges. Brilliant space saving idea! So, haven't had to test this stuff yet, but I'm fairly confident it will work. An added bonus is that it can clean up with water. I've heard stories of tire places not wanting to touch a tire with the other brand that comes in an aerosol can, as it's dangerous and messy. Time will hopefully not tell. It's like insurance - hate to pay for it until you need it, but hope you never do.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on August 16, 2018

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