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4.6 out of 5 stars. 366 reviews

Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

4.6366 Reviews

Item # 228684899

Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
$99.99
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Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

4.6366 Reviews

Item # 228684899

Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
Image showing Copper Sulfate Crystals Pond Treatment, 15 lb.
$99.99

Shopping at

Grassland (franklin) TN

2 In Stock

Delivering to

37027

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

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Reviews

Rating Snapshot

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281 reviews with 5 stars.
45 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 using English reviews only
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 366 Reviews
1 – 4 of 366 Reviews
OH
Review 1

Controls Alge

3 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

8 months 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.