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4.6
(368)
4.6 out of 5 stars. 368 reviews
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Shop all Crystal Blue

Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

4.6

(368 Reviews)

|

Item # 2286848

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

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Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Shop all Crystal Blue
Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Item # 2286848

Stocked & Ready
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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Shop all Crystal Blue
Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

Item # 2286848

Stocked & Ready
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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Get everything you need
Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.
4.6(368)

Crystal Blue Copper Sulfate Crystals Pond Treatment, 15 lb.

$99

.99

Applied Biochemists Blue Bayou Pond Colorant, 1 gal.
4.7(73)

Applied Biochemists Blue Bayou Pond Colorant, 1 gal.

$44

.99

Applied Biochemists Aquashade Aquatic Plant Growth Control, 1 gal.
4.6(62)

Applied Biochemists Aquashade Aquatic Plant Growth Control, 1 gal.

$54

.99

$64.99

Save (15%)

FarmWorks Blue Pond Dye, 2.5 gal.
4.6(142)

FarmWorks Blue Pond Dye, 2.5 gal.

$89

.99

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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
BrandCrystal Blue
Country of OriginMade in USA
Active IngredientsCopper Sulfate
Concentrated or Ready to UseReady to Use
FormGranules
Longevity14 days
Maximum Pond Size1.5 million gal.
Maximum Recommended Pond Depth20 ft.
Package Quantity1
Package Size15 lb.
Product Height10.75
Product Length6.625
Product Weight16
Product Width9.125
Treatment TypeCleaners and Treatments
Manufacturer Part Number222

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 52 Questions
Sort by
Newest questions

Q: Would this product be safe for cattle to drink water after doing the treatment

18 days ago
1 Answer
  • A: Hi Nicole! Yes, this product is safe for livestock such as cattle when used as directed. It is commonly used to keep stock ponds and tanks clean and clear.
    16 days ago
    Helpful?

Q: Can I use a small amount to treat my swimming pool since this kills algae?

23 days ago
1 Answer
  • A: Hi jerry! No, this product should not be used in a pool.
    21 days ago
    Helpful?

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

25 days ago
1 Answer
  • AI-assisted, Human-approved
    A: Hi Coach- Yes, it can be used for sheep foot baths. Additionally, it has been recommended by a veterinarian for treating hairy foot wart in dairy cows when mixed with water for a foot bath.
    23 days ago
    Helpful?

Q: Does this product kill duckweed

a month 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.
    28 days ago
    Helpful?

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

a month 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
    a month ago
    Helpful?

Q: will this kill ich on catfish

a month 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
    a month ago
    Helpful?

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

4 months ago
1 Answer
  • AI-assisted, Human-approved
    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.
    4 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?

7 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?

9 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
    9 months ago
    Helpful?

Q: Will it kill lilly pads?

a year 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.
    a year ago
    Helpful?
1 - 10 of 52 Questions
  • Next

Q&As

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 52 Questions
Sort by
Newest questions

Q: Would this product be safe for cattle to drink water after doing the treatment

18 days ago
1 Answer
  • A: Hi Nicole! Yes, this product is safe for livestock such as cattle when used as directed. It is commonly used to keep stock ponds and tanks clean and clear.
    16 days ago
    Helpful?

Q: Can I use a small amount to treat my swimming pool since this kills algae?

23 days ago
1 Answer
  • A: Hi jerry! No, this product should not be used in a pool.
    21 days ago
    Helpful?

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

25 days ago
1 Answer
  • AI-assisted, Human-approved
    A: Hi Coach- Yes, it can be used for sheep foot baths. Additionally, it has been recommended by a veterinarian for treating hairy foot wart in dairy cows when mixed with water for a foot bath.
    23 days ago
    Helpful?

Q: Does this product kill duckweed

a month 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.
    28 days ago
    Helpful?

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

a month 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
    a month ago
    Helpful?

Q: will this kill ich on catfish

a month 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
    a month ago
    Helpful?

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

4 months ago
1 Answer
  • AI-assisted, Human-approved
    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.
    4 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?

7 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?

9 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
    9 months ago
    Helpful?

Q: Will it kill lilly pads?

a year 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.
    a year ago
    Helpful?
1 - 10 of 52 Questions
  • Next

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Reviews

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Overall Rating

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

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1 to 4 of 368 Reviews .
1 – 4 of 368 Reviews
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Most Recent
OH
Review 1
5 out of 5 stars.

Controls Alge

11 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
4 out of 5 stars.

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
5 out of 5 stars.

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
Anonymous
South Louisiana
Review 1
2 out of 5 stars.

Kills algae but also kills fish.

a year ago
Killed some of our fish.

No, I do not recommend this product.

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