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4.6 out of 5 stars. 368 reviews
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Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

4.6

(368 Reviews)

|

Item # 2286848

$99.99
A woman outside with a dog
A woman outside with a dog

Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Item # 2286848

Crystal Blue Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.
Crystal Blue Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.
$99.99
Notice:
This Item cannot be shipped to CT, HI, NJ, NY, ND, SD, VT, WA.
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Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Item # 2286848

Crystal Blue Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.
Crystal Blue Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.
$99.99
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Shopping at

Grassland (franklin) TN

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.


Notice:
This Item cannot be shipped to CT, HI, NJ, NY, ND, SD, VT, WA.
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The Crystal Blue Copper Sulfate Crystals Pond Treatment should be used as a pond algae treatment on actively growing algae in water temperature above 60F. Granular copper can be applied in 1 of 3 different ways: broadcast crystals, place crystals in a burlap bag and drag behind boat, or dissolve crystals and spray. About 2 lb. of product treats approximately 15,000 sq. ft.

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

  • 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
  • Granular copper can be applied in 1 of 3 different ways: broadcast crystals, place crystals in a burlap bag and drag behind boat, or dissolve crystals and spray
  • Application method we recommend is to dissolve the crystals in hot water and spray actively growing algae
  • Do Not use this product with koi, goldfish, or trout
  • 2 lb. treats approximately 15,000 sq. ft.; always be sure to read the product label before application
  • No warranty information available

Q&As

1 - 10 of 50 Questions

Q: Can this product be used in a sheep foot bath to help control foot rot bacteria

17 hours ago
0 Answers

    Q: Does this product kill duckweed

    6 days ago
    1 Answer
    • A: Hi Neathamer! Yes, this product can be used to reduce and eliminate duckweed in your pond. Reviewers have noted it works well for both moss and duckweed.
      3 days ago
      Helpful?

    Q: Will this kill ich on my catfish and is it save to use with catfish

    29 days ago
    1 Answer
    • A: Hi Neighbor- Yes, copper sulfate can kill the free-swimming stage of the Ich parasite. However, using Crystal Blue Copper Sulfate 15 lb pond treatment on catfish is highly risky and generally not recommended
      26 days ago
      Helpful?

    Q: will this kill ich on catfish

    29 days ago
    1 Answer
    • A: Hi Neighbor- Yes, copper sulfate is used in aquaculture to manage parasites like Ich in catfish ponds. However, channel catfish are highly sensitive to copper. Improper dosing using Crystal Blue Copper Sulfate Crystals can cause fish kills and make the infection harder to treat
      26 days ago
      Helpful?

    Q: How is product introduced in to pond ? Pour in on part where alge thickest or just kinda pour it around?

    3 months ago
    1 Answer
    • AI-assisted
      A: Hi Neighbor! The product can be applied in three ways: broadcast the crystals directly onto the algae, place crystals in a burlap bag and drag behind a boat, or dissolve the crystals in hot water and spray on actively growing algae. The recommended method is dissolving in hot water and spraying.
      3 months ago
      Helpful?

    Q: Can this be used in a foot bath to help control foot rot in sheep. If so, how much in a gallon of water?

    6 months ago
    1 Answer
    • A: Hi Neighbor! The Crystal Blue Copper Sulfate Crystals Pond Treatment should be used as a pond algae treatment on actively growing algae in water temperature above 60F. We can not recommend a product for anything other than its intended use.
      6 months ago
      Helpful?

    Q: Good for killing landscape roots?

    8 months ago
    1 Answer
    • A: Hi Neighbor! Copper sulfate should be used as a pond algae treatment on actively growing algae in water temperature above 60F
      8 months ago
      Helpful?

    Q: Will it kill lilly pads?

    11 months ago
    1 Answer
    • A: Hi Neighbor! No, this product will not kill water lilies and pads. This product is an algaecide and its primary purpose is to kill/control algae in ponds.
      11 months ago
      Helpful?

    Q: Can this be used to clear roots from a sewer

    a year ago
    1 Answer
    • A: Hi Joe! Copper sulfate should be used as a pond algae treatment on actively growing algae in water temperature above 60F.
      a year ago
      Helpful?

    Q: For spraying how much crystals per gallon of water

    a year ago
    1 Answer
    • A: Hi Robert! Please see pages 3-5 in the Crystal Blue 390835A Brochure 1 found under the "product documents" tab.
      a year ago
      Helpful?
    1 - 10 of 50 Questions

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    Reviews

    Rating Snapshot

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    282 reviews with 5 stars.
    46 reviews with 4 stars.
    20 reviews with 3 stars.
    8 reviews with 2 stars.
    12 reviews with 1 star.

    Overall Rating

    4.6
    89 out of 104 (86%) reviewers recommend this product

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    Summary of Reviews

    AI-generated from customer ratings & reviews, and may include incentivized reviews.
    The copper sulfate product is generally effective at controlling algae and maintaining clear ponds, though it must be used carefully as it can be harmful to fish, plants, and other pond life if over-a...
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    1 to 4 of 368 Reviews .
    1 – 4 of 368 Reviews
    OH
    Review 1

    Controls Alge

    10 months ago
    Good results on Day one. Alge blooms on the edge of pond gone. No dead fish.

    Yes, I recommend this product.

    Russellville, ky
    Review 1

    Great stuff

    a year ago
    Great stuff but why is it $30.00 more at TSC in Russellville then any TSC around. It

    Yes, I recommend this product.

    Grass Valley. Calif
    Review 1

    Copper sulfate kills pond weeds

    a year ago
    Kills weeds in our 1/2 acre pond. I use the boat, hand held whirly bird fertilizer gizmo. Wear safety goggles, mask, leather jacket, because copper sulfate is toxic. I float over the weeds and give it a sprinkle. After a few weeks plants should be brown. If you missed some go back for a second dose. Only do about 1/3 of the pond at a time other wise you can kill all the fish like I did one time.
    SweepstakesYes
    South Louisiana
    Review 1

    Kills algae but also kills fish.

    a year ago
    Killed some of our fish.

    No, I do not recommend this product.