Cutrine Plus Liquid Algaecide 2-Pack of 1 Gallon Containers, 2 Gallons Total
Cutrine Plus Liquid Algaecide 2-Pack of 1 Gallon Containers, 2 Gallons Total
$9886
Cutrine Plus Algaecide and Herbicide is a liquid chelated copper treatment for fast control of algae in ponds, lakes, reservoirs, and irrigation systems. It is built for surface and water-column use, shows visible reduction in 24 to 48 hours, and stays effective in hard water.
- Fast results; visible reduction is often seen in 24 to 48 hours
- Targeted fit; ideal for surface algae and the water column
- Hard-water ready; chelation helps keep copper available longer
- Broad control; supports planktonic, filamentous, Chara, and Nitella treatment
- Use flexibility; treated water may be used for key labeled uses after treatment
- Label-backed; EPA-registered for labeled aquatic applications
Choose the 1 gallon size for flexible liquid coverage and accurate sprayer application.
Not for koi, hybrid goldfish, or small volume garden pond systems.
Recommended companion treatment program
NT-MAX Lake & Pond Clarifier + Sludge & Muck Digester supports longer-term digestion of sludge, muck, and nutrient-rich organic buildup that can contribute to recurring water quality issues.
After using Cutrine Plus Algaecide, wait about 5 days before applying NT-MAX Lake & Pond Clarifier + Sludge & Muck Digester.
Bundle savings may be available below when eligible.
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Product Description
Fast algae knockdown with liquid placement control
When you need quick cleanup without switching to a granular treatment, Cutrine Plus gives you the control of a liquid concentrate with the hard-water stability of a chelated copper formula. It is especially useful for planktonic blooms, floating or suspended filamentous growth, and other algae problems where even surface coverage matters. For deeper bottom-growth zones, a granular program may still be the better fit.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Liquid chelated copper formula | Helps keep copper available in the water so treatments stay practical in hard-water conditions. |
| 24 to 48 hour visible reduction | Gives buyers a faster visual read on whether the treatment is working. |
| Surface spray or injection use | Supports targeted placement for surface algae and water-column infestations. |
| Broad labeled algae spectrum | Covers planktonic, filamentous, Chara, and Nitella with one product family. |
| Post-treatment water-use flexibility | Label allows key uses like swimming, fishing, irrigation, and livestock watering after treatment. |
Comparison Table
| Cutrine Plus Liquid | Granular chelated copper algaecide | Copper sulfate treatment | Biological pond-treatment program | |
|---|---|---|---|---|
| Product form | Liquid concentrate | Dry granules | Crystal, powder, or liquid by label | Liquid or dry by program |
| Typical placement method | Surface spray or injection | Spot or broadcast granular placement | Varies by label | Program dosing over time |
| Common selection reason | Surface and water-column algae | Localized or bottom-zone placement | Traditional copper treatment path | Maintenance-focused support |
| Water-use context after treatment | Swimming, fishing, irrigation, and livestock use allowed | Varies by label | Varies by label | Varies by product |
| Visible-results timing | 24 to 48 hours | Varies by label | Varies by chemistry | Varies by program |
Why Choose a Liquid Chelated Copper Algaecide?
- Rapid visual response: The label and product sheet support visible algae reduction in as little as 24 to 48 hours.
- Better placement control: Liquid application makes it easier to coat surface mats and treat water-column problems with common spray equipment.
- Stronger buying confidence: EPA registration, labeled post-treatment water uses, and broad algae fit help reduce guesswork before purchase.
This product is distributed by NewTechBio as an authorized reseller. Specifications, treatment rates, and performance claims are sourced from the official EPA-approved manufacturer label and published documentation. NewTechBio does not independently verify manufacturer claims. Always read and follow the label.
Last updated for listing accuracy: 05/17/2026
What is Cutrine Plus Liquid best used for?
When should I choose Cutrine Plus Liquid instead of a granular algaecide?
What types of algae does Cutrine Plus Liquid control?
Does Cutrine Plus Liquid work in hard water?
How much water can one gallon treat?
How do I mix and apply Cutrine Plus Liquid for the best coverage?
How fast will I see results after treatment?
Can treated water still be used for swimming, fishing, irrigation, or livestock?
Can I use Cutrine Plus Liquid in a koi pond or small backyard water garden?
How often can I retreat with Cutrine Plus Liquid?
Products related to this item
Product Details
Important Information
SDS: View Safety Data Sheet (PDF)
LABEL (Directions & Rates): View Product Label (PDF)
Comments/Other: Review the Product Label and SDS for directions, rates, and safety information.
Certifications / Registrations: EPA registered
Origin: Made in the USA
Feature: Ideal for spot treatments and shoreline management, No irrigation or swimming restriction when used according to the EPA label
Product Form: Liquid
Product Details
Fast algae knockdown with liquid placement control
When you need quick cleanup without switching to a granular treatment, Cutrine Plus gives you the control of a liquid concentrate with the hard-water stability of a chelated copper formula. It is especially useful for planktonic blooms, floating or suspended filamentous growth, and other algae problems where even surface coverage matters. For deeper bottom-growth zones, a granular program may still be the better fit.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Liquid chelated copper formula | Helps keep copper available in the water so treatments stay practical in hard-water conditions. |
| 24 to 48 hour visible reduction | Gives buyers a faster visual read on whether the treatment is working. |
| Surface spray or injection use | Supports targeted placement for surface algae and water-column infestations. |
| Broad labeled algae spectrum | Covers planktonic, filamentous, Chara, and Nitella with one product family. |
| Post-treatment water-use flexibility | Label allows key uses like swimming, fishing, irrigation, and livestock watering after treatment. |
Comparison Table
| Cutrine Plus Liquid | Granular chelated copper algaecide | Copper sulfate treatment | Biological pond-treatment program | |
|---|---|---|---|---|
| Product form | Liquid concentrate | Dry granules | Crystal, powder, or liquid by label | Liquid or dry by program |
| Typical placement method | Surface spray or injection | Spot or broadcast granular placement | Varies by label | Program dosing over time |
| Common selection reason | Surface and water-column algae | Localized or bottom-zone placement | Traditional copper treatment path | Maintenance-focused support |
| Water-use context after treatment | Swimming, fishing, irrigation, and livestock use allowed | Varies by label | Varies by label | Varies by product |
| Visible-results timing | 24 to 48 hours | Varies by label | Varies by chemistry | Varies by program |
Why Choose a Liquid Chelated Copper Algaecide?
- Rapid visual response: The label and product sheet support visible algae reduction in as little as 24 to 48 hours.
- Better placement control: Liquid application makes it easier to coat surface mats and treat water-column problems with common spray equipment.
- Stronger buying confidence: EPA registration, labeled post-treatment water uses, and broad algae fit help reduce guesswork before purchase.
SDS: View Safety Data Sheet (PDF)
LABEL (Directions & Rates): View Product Label (PDF)
Comments/Other: Review the Product Label and SDS for directions, rates, and safety information.
Certifications / Registrations: EPA registered
Origin: Made in the USA
Feature: Ideal for spot treatments and shoreline management, No irrigation or swimming restriction when used according to the EPA label
Product Form: Liquid
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Reviews
Verified Purchase
Thank you for the advice and guidance. Our wellness retreat pond is in great shape. The Cutrine and NT-MAX makes a world of difference. Best!
Verified Purchase
Last year my two-acre pond started turning into pea soup, so I used this and applied it twice. The algae was gone within a few weeks and it also eliminated all my floating algae. The water stayed clear for the rest of the year. A word of caution: don't use too much or you could harm small frogs, minnows, etc. Be sure to read the directions and warnings carefully. Since this product contains copper, you should not let goats drink the treated water. If you're dealing with an algae issue, this is the way to go. It worked great for me and I would recommend it to anyone looking to clear up algae problems.
Verified Purchase
There was a layer of algae covering my pond. I mixed it according to the directions and applied it with a backpack sprayer. You could actually watch the algae disappear right as I sprayed. It never returned afterward. Great stuff!
Verified Purchase
The algaecide definitely kills floating algae—you can see it starting to work within an hour. Just be sure to treat every bit of it or the algae will return within a week. I've learned that you'll need to retreat periodically throughout the growing season since it's not a permanent one-time solution.
Verified Purchase
Cutrine Plus Algaecide is an excellent product for eliminating algae blooms in lakes when applied at the recommended dosage. Just be sure to calculate your lake measurements accurately to apply the right amount.
Verified Purchase
Excellent product that works really well and the price is great too.
Verified Purchase
I have a half-acre pond that was being overrun by filamentous algae mats. I had been using another product from a pond store that did nothing to help, so I was spending hours each day scooping algae with a net. Then I tried Cutrine Plus. I started spraying from the dam and by the time I circled back the algae was already turning brown. After a week nearly all the algae was gone. This stuff is amazing. I would definitely recommend it if you're tired of wasting money on products that don't work, and this was the best price I've seen.
Verified Purchase
This is one of the best algaecides available for controlling planktonic algae in farm ponds. I've used it several times over the years and it works when nothing else does.
Verified Purchase
It's a great product for controlling floating algae, though it does take a good amount to achieve full control. I've been testing different application rates. A 1:4 ratio of Cutrine to water seems best, and sometimes even stronger if you can apply it evenly. Higher concentration works especially well when the algae gets pushed to one side by the wind, so I suggest waiting for a breezy day.
Verified Purchase
A long-stem weed was taking over my half-acre pond, so I used Cutrine Plus. It took around two weeks, but the pond was cleared of that weed. I would recommend it for this type of weed.
Verified Purchase
The product completely eliminated all the algae in the pond within about three days.
Verified Purchase
The product does a wonderful job controlling algae. It also gives my small pond a light blue tint.
Verified Purchase
Cutrine works effectively on the algae in my pond. The price was very reasonable, shipping arrived quickly, and it came right on time.
Verified Purchase
It quickly killed the floating algae and also took out quite a few plants growing in the shallow water. I highly recommend it.
Verified Purchase
Mats of algae were floating across the surface of my half-acre pond. I waited for a windy day so the mats collected at one end, then sprayed them with a hand pump sprayer. They were completely gone in three days. I highly recommend this product.
Verified Purchase
It works very effectively with monthly applications from spring through summer. I also add blue coloring to the water at the same time.
