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Cutrine Plus Granular Algaecide

SKU: CPG1
$67.99
Size

Targeted Granular Algaecide for Bottom-Growing Algae

Control stubborn bottom-growing algae with Cutrine Plus Granular Algaecide, a double chelated copper formulation specifically designed to sink and target filamentous algae, Chara, and Nitella that grow on pond and lake bottoms. Unlike liquid algaecides that disperse throughout the water column, these granules deliver copper directly to the bottom where problem algae thrive.

Formulated with 3.7% copper as elemental (copper-ethanolamine), Cutrine Plus Granular provides effective control of bottom-growing algae species that are difficult to manage with surface applications.

Two Sizes Available

12 lb Container – Ideal for smaller ponds, spot treatments, or initial applications. Treats 0.13 to 0.6 surface acres depending on dosage rate.

30 lb Container – Professional-grade quantity for larger ponds or multiple treatments. Offers better value for large-scale applications.

Key Features

  • Double chelated copper granular algaecide
  • 3.7% copper as elemental (copper-ethanolamine)
  • Specifically targets bottom-growing filamentous algae, Chara, and Nitella
  • Granules sink to deliver copper directly to bottom algae
  • Dosage: 20-90 pounds per surface acre
  • Available in 12 lb and 30 lb containers
  • Double chelation maintains copper effectiveness as it sinks

Application: Broadcast the granules evenly over the affected area. The granules will sink to the bottom where they release copper to control bottom-growing algae.

Important: Not for use in waters containing trout, koi, or other fish susceptible to copper. Always read and follow label directions.

Shipping Restrictions: No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA, or Canada.

Frequently Asked Questions

Which size should I choose?

Choose the 12 lb container for smaller ponds or spot treatments. The 30 lb container is better for larger ponds or multiple treatments throughout the season.

What types of algae does this control?

Cutrine Plus Granular is specifically recommended for bottom-growing filamentous algae, Chara (muskgrass), and Nitella (stonewort) that attach to pond and lake bottoms.

How is this different from liquid algaecides?

The granular format sinks to the bottom to deliver copper directly where bottom-growing algae attach. Liquid algaecides disperse throughout the water and may not effectively reach bottom-growing species.

How much product do I need?

Dosage ranges from 20 to 90 pounds per surface acre depending on algae type, density, and water conditions. Follow label directions for proper dosing.

Is this safe for fish?

Not for use in waters containing trout, koi, or other fish susceptible to copper. When used according to label directions in waters with copper-tolerant fish, it can be used safely.

How do I apply granular algaecide?

Broadcast the granules evenly over the affected area. The granules will sink to the bottom where they release copper to control algae. Application from a boat allows for even distribution.

What does "double chelated" mean?

Double chelation protects the copper from binding with minerals in the water as it sinks, maintaining its algaecidal properties until it reaches the target algae.

Why can't this ship to certain states?

Regulatory restrictions in AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA, and Canada prohibit shipment of this product to those locations.

Can I use this in my koi pond?

No, this product is not for use in waters containing koi or other fish susceptible to copper. Use alternative algae control methods for koi ponds.