GreenClean® PRO Granular Algaecide, Fungicide & Oxidizing Agent - 50 lb

Granular Algaecide and Oxidizer for Water Systems and Walkways

Copper-based algaecides carry runoff restrictions that make them a poor fit for facilities near sensitive waterways or under discharge limits. GreenClean PRO Granular controls the same filamentous algae, blue-green algae (cyanobacteria), bacterial coliforms, fungi, and slime molds using Sodium Carbonate Peroxyhydrate (85%) and APC oxidizing technology, giving operations an algaecide option without a copper runoff concern.

The 50 lb granular format applies at 1 to 2 lbs per 1,000 sq ft across irrigation ponds, standing water, and hard surfaces, and its algae control on walkways and benches also reduces the slip hazard that wet, algae-covered surfaces create.

Key Features & Benefits

• Broad-spectrum control — APC technology targets filamentous algae, blue-green algae, bacterial coliforms, fungi, and slime molds.
• No copper runoff concern — an alternative to copper sulfate algaecides for operations near sensitive waterways.
• OMRI Listed and NSF Certified — approved for certified organic production and meets NSF certification standards.
• Zero-day PHI, 0-hour granular REI — no pre-harvest interval and no extended re-entry wait for granular applications.
• Reduces walkway slip hazard — controls algae and moss on floors and benches in wet greenhouse environments.

Who Should Use This

Greenhouse operators, nursery managers, and irrigation system managers who need a broad-spectrum, OMRI-listed algaecide for ponds, water storage, and hard surfaces are the direct fit for this granular product.

About BioSafe Systems

BioSafe Systems, founded in 1998 and headquartered in Connecticut, develops oxidation-based water treatment and sanitation products, including the GreenClean line of algaecides and cleaners.

Frequently Asked Questions

How is GreenClean PRO different from copper sulfate algaecides?

GreenClean PRO uses Sodium Carbonate Peroxyhydrate rather than copper, so it avoids the copper runoff restrictions that apply near sensitive waterways. Check local regulations for any application-specific requirements at your site.

What is the application rate?

Apply at 1 to 2 lbs per 1,000 sq ft, adjusting within that range based on algae pressure and the specific water system or surface being treated. Always follow the current product label for site-specific rates.

What organisms does this product control?

It controls filamentous algae, blue-green algae (cyanobacteria), bacterial coliforms, fungi, and slime molds. See the product label for the complete list of labeled sites and organisms.

How does this product reduce slip hazards?

By controlling algae and moss growth on walkways, floors, and benches, it removes the slippery film that wet, algae-covered surfaces develop. This is a secondary benefit alongside its water-system algae control.