SKU: 3871474997
copper sulfate herbicide

copper sulfate herbicide Copper Sulfate Crystals 5 lb

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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

copper sulfate herbicide Copper Sulfate Crystals 5 lbPure Copper Sulfate for Professional Aquatic Management Copper Sulfate Crystals deliver effective control of algae, aquatic weeds, and microscopic organisms in lakes and ponds. With 99. 0% copper sulfate pentahydrate, this proven solution provides reliable results with no water use restrictions when applied at label rates. Key Benefits 99% Pure: Maximum strength copper sulfate pentahydrate Broad Spectrum: Controls algae, weeds, and certain parasites

Pure Copper Sulfate for Professional Aquatic Management

Copper Sulfate Crystals deliver effective control of algae, aquatic weeds, and microscopic organisms in lakes and ponds. With 99.0% copper sulfate pentahydrate, this proven solution provides reliable results with no water use restrictions when applied at label rates.

Key Benefits

  • 99% Pure: Maximum strength copper sulfate pentahydrate
  • Broad-Spectrum: Controls algae, weeds, and certain parasites
  • No Water Restrictions: Safe for swimming, fishing, and irrigation when used as labeled
  • Easy Application: Dissolve in water and spray on surface
  • Temperature Adaptable: Rates adjust based on water conditions

Available Sizes

5lb (SKU: CS5) - Ideal for small to medium ponds and spot treatments up to 1 acre.

15lb (SKU: CS15) - Best for medium to large ponds requiring regular maintenance, suitable for 2-5 acres.

50lb (SKU: CS50) - Professional quantity for large lakes, commercial applications, and multiple treatment sites. Does not qualify for free shipping.

Application

Application rates vary from 0.67 to 5.32 pounds per acre-foot depending on target species. Dissolve crystals in water and spray onto the surface where control is needed. Rates may adjust based on water temperature—consult label for specific dosing.

Ideal For

Lakes, large ponds, aquaculture operations, irrigation ponds, and golf course water features.


Frequently Asked Questions

Which size should I choose?

5lb for ponds under 1 acre, 15lb for 2-5 acres or frequent applications, 50lb for large lakes or commercial operations.

How much do I need?

Rates range from 0.67 to 5.32 pounds per acre-foot depending on target species. Calculate your pond volume and consult the label for specific rates.

Is it safe for fish?

Yes, when used at label rates. Some species like trout and koi are more sensitive—follow label guidelines carefully.

Are there water use restrictions?

No, when applied at label rates there are no restrictions for swimming, fishing, or irrigation.

How do I apply it?

Dissolve crystals in water, then spray the solution onto the water surface. Apply on calm days for best results.

How long until I see results?

Typically 24-72 hours, depending on water temperature and target species.

Does it help with parasites?

Yes, it may control certain external parasites in freshwater. Consult an aquaculture specialist for proper dosing.

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: 3871474997

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JF
Lowell, US
★★★★★ 5
Great for recovery
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
Really helps with post work out recovery. I feel noticeably less sore when I take this after a workout. Definitely prefer the lemon flavor over the berry.
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Reviewed in the United States on April 28, 2026
D
Verified Purchase
Dan
Louisville, US
★★★★★ 3
Great formula, but desperate for an unflavored option
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
I’ve been incorporating Thorne’s Amino Complex into my daily stack, and from a nutritional standpoint, it’s hard to beat. The clinical dosing of essential amino acids is exactly what I’m looking for to support my recovery and fitness goals. Thorne is usually my go-to for purity and quality, and this product is no exception when it comes to the actual ingredients. ​However, the flavor profile is a significant drawback. To be blunt: the flavors are just not good. They feel chemically and overly sweet, which makes it a chore to drink rather than a supplement I look forward to. ​I would much prefer an unflavored and unsweetened version. Having the option to just mix the raw powders into water or my own beverage without the unnecessary flavorings and sweeteners would be a game-changer. If you’re sensitive to artificial tastes or just prefer a "cleaner" experience, the current options might be a struggle. ​Pros: ​High-quality amino acid profile. ​Trusted brand with great sourcing. ​Cons: ​Flavors are unpleasant and too sweet. ​No "naked" or unflavored option available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
A
Verified Purchase
Adrienne
Dallas, US
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
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Reviewed in the United States on May 19, 2026
N
Verified Purchase
Nina Miller
Massapequa, US
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
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Reviewed in the United States on February 15, 2025
L
Verified Purchase
Lakerat
Bozeman, US
★★★★★ 1
Horribly ‘weird’ sweet flavor
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Horrible taste - synthetic sweetness than destroys my shakes. I bought Thorne because of its high quality but this is one of their products that won’t work for me. I’m struggling through the jar because it’s too expensive to waste. Using cacao powder, cinnamon & cardamom to try to tone down the overwhelming ‘sweet.’
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Reviewed in the United States on May 18, 2026

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