Can you broadcast the crystals over the algae pads rather than the dissolve and spray method?

yes you may but with fine crystals, you may have some trouble as it is powder.

Should you turn your aerators when you treat your pond? Or does it matter

I used mine for killing roots in field tiles. For pond use, our sportsman's club puts it around the edges of the one acre ponds and lets it settle, without mixing it in too much. That's where their problems are. I would imagine if your whole pond is a problem, turn the aerators on. Just my opinion.

Can this be used as tree stump remover?

No idea I use it to kill weeds around lake

How much crystals would I add to a 20 gallon sprayer to spray for algae?

The ratio to add to 5 gallons of water is 3 pounds of the product. So you can add 12lbs to that sprayer.

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Copper Sulfate Fine Crystals 50lb Bag

Product ID: 31715385

Details

Brand
Copper Sulfate
GHS health hazard
Irritant
Item Weight
50 pounds
Package Information
Bag
Percentage assay
99

💧fast dissolving fine powder

🔵99% pure vibrant crystals

⚖️50lb bulk supply

NZ$3638

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Description

🔬 Elevate your projects with the power of pure, vibrant Copper Sulfate!

RAPID SOLUBILITY - Fine crystalline form ensures quick dissolution for seamless application every time.
PREMIUM 99 PURITY - Experience unmatched chemical precision with ultra-pure Copper Sulfate crystals.
DURABLE EASY STORAGE - Packaged to maintain crystal integrity—keep your supply fresh, dry, and ready to go.
MASSIVE 50 LB BULK BAG - Stay ahead of your projects with a supply that lasts—no frequent reorders needed.
VERSATILE CREATIVE SCIENTIFIC USE - Perfect for educators, artists, and industrial innovators seeking vibrant blue hues and reliable performance.

This 50lb bag of Copper Sulfate Fine Crystals offers 99% pure pentahydrate in a fast-dissolving fine powder form, ideal for large-scale scientific, educational, and artistic applications. Its bulk packaging ensures long-lasting supply, while the brilliant blue crystals add both functional and aesthetic value to your projects.

Specifications

% Assay of Chemical(s)	99
ASIN	B01C5270EO
Best Sellers Rank	#79,925 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #93 in Analytical Reagents
Brand Name	Copper Sulfate Crystals
Container Type	Bag
Customer Reviews	4.7 4.7 out of 5 stars (364)
GHS Health Hazard	Irritant
GHS Physical Hazard	Corrosive
Item Form	Powder
Item Weight	50 pounds
Manufacturer	Quimag and Old Bridge
Safety Signal Word	Warning
UPC	661799896948 661799896955

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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NZ$3638

Duties & taxes included

In stock

Sold byAmazon Cook IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cook Islands.

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TrustScore 4.5 | 7,300+ reviews

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