copper sulfate herbicide Crystal Blue Copper Sulfate 5 lb
SKU: 7786296685
copper sulfate herbicide

copper sulfate herbicide Crystal Blue Copper Sulfate 5 lb

Sale price$24.43 Regular price$27.15
Save 10%

Pay in installments of $6.79 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 1 - Jul 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

        Discover Niche Categories That Outsell copper sulfate herbicide

        Top-Converting Item to Boost Your Average Order

        4.8 ★★★★★
        Based on 697 reviews
        Sort
        Highest Rating
        Newest First
        Oldest First
        Product Reviews
        C
        Verified Purchase
        CarrieMack
        Birmingham, US
        ★★★★★ 5
        My Family's Favorite Sunscreen!
        Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
        This is our go-to sunscreen and my family has not used any other brand since discovering it about 5 or 6 years ago. The scent is pleasant, light, and tropical. Application is quick and easy. It goes on clear (not white) and looks a little greasy at first, but that is actually a positive because it helps you quickly see spots you (or your child) missed. It soon absorbs cleanly and the oily feeling goes away after a few minutes. The sunscreen works really well. My family has very pale, sensitive skin with eczema and easily burns in the sun. It does not irritate our skin at all and provides great coverage. This stuff works very well for us on vacation in Florida and on Bahamas/Caribbean cruises. It fits easily in a small bag and doesn't take up much room. With it being a solid, there's no worry of leaking. I love that you can hand everyone a stick and they can do most of the application themselves. Then we turn around and get the hard to reach spots on each other. And all done with clean hands that aren't getting messy. I would be so sad if this sunscreen is ever discontinued. We have over a dozen sticks in our house/car/luggage at any given time.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on August 11, 2025
        E
        Verified Purchase
        Emily Davis
        Grantham, US
        ★★★★★ 5
        No Fuss For Kids
        Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
        Neutrogena Sunscreen Stick SPF 50 – A Summer Must-Have! I absolutely love the Neutrogena Sunscreen Stick SPF 50 — it’s a staple in our summer routine. I always keep several on hand: one in the car, one in the stroller, and one in our beach bag. It’s just so convenient to have wherever we go! What makes this sunscreen stick stand out is how easy it is to apply, especially on my kids’ faces. There’s no mess, no fuss, and no need to rub it in. I can quickly swipe it on even when they’re squirming or in the middle of playing. It goes on clear, feels lightweight, and doesn't leave a sticky or greasy residue. This product gives me peace of mind knowing my kids are protected with broad-spectrum SPF 50, and I don’t have to wrestle them into a full sunscreen routine. Total win for busy parents! Highly recommend for anyone looking for a quick, reliable, and kid-friendly sunscreen solution.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on June 23, 2025
        E
        Verified Purchase
        Elizabeth Brule
        Dallas, US
        ★★★★★ 4
        Super easy sun protection
        Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
        I keep buying this every summer for its ease of application! I’ve gotten others hooked on it too. It’s a little greasy but super effective, so worth it!
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on February 14, 2026
        K
        Verified Purchase
        Kevin Brocksieck
        Grantham, US
        ★★★★★ 5
        Convenient product but not worth the money versus regular sunscreen. Good for convenience
        Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
        Great product and easy to use but not worth the extra cost for the convenience
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on May 20, 2026
        A
        Verified Purchase
        AmazonCustomer
        Birmingham, US
        ★★★★★ 5
        Dermatologist recommended
        Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
        I did a light study on these products and this one is recommended by dermatologist with lots of good reason. There’s one dermatologist on you tube that does the most extensive and short, to the point at the same time, explanation of the different products on the market and what you want in a sunscreen. It’s worth looking it up if you used a lot of this product. She wasn’t selling anything but suggested this as one that’s the safest to use you should look that one up if it’s a concern. It’s the best and most simplified piece that I’ve seen on the subject. I recommend this one because that doctor recommended it. I still tan with it but I don’t burn. My pasty white skin likes to burn lol. It stays on with water reasonably well. I like the small package. It lasts pretty good too. I try to travel light and things like this really help. With a light load towel and a few things compact I can carry everything in a very small gym bag. This compact packing is awesome. The speedstick type applicator. The whole thing isn’t just perfect and a great product overall
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on April 26, 2026

        recommand products