SePRO Harpoon Aquatic Herbicide
Best targeted solution for pond owners managing bottom rooted weeds.
This granular treatment is the most precise way to clear invasive weeds from your pond without disrupting your weekend plans, as the water remains safe for swimming and fishing immediately. Just be mindful that it’s strictly off-limits if you keep koi, trout, or other sensitive fish species.
$220.00
at
Aquaticbiologists
Who it's for
- Pond owners dealing with dense bottom-dwelling invasive vegetation
- Property managers needing quick clearance of unsightly aquatic weeds
- Homeowners treating specific swimming areas or boat slips
Who should skip it
- Hobbyists maintaining sensitive ornamental fish ponds or trout streams
- Ecologically conscious owners managing large bodies of water
- Users in soft water regions requiring precise chemical monitoring
Performance breakdown
Targeted Weed Control
Chelated copper formula aggressively eliminates stubborn invasive species like Hydrilla.
Application Versatility
Effective across diverse water bodies from ornamental ponds to large reservoirs.
Post-Treatment Usability
Immediate swimming and fishing access minimizes disruption to your outdoor lifestyle.
Application Precision
Granular format allows for accurate, localized treatment of specific weed patches.
Species Safety Profile
Strict toxicity warnings for koi and trout limit its universal utility.
Ease of Handling
Standard 40-pound packaging is manageable but requires proper safety equipment.
Key Specs
Active Ingredient
Chelated copper
Formulation
Granular
Net Content
40 lbs
EPA Registration Number
8959-55
Target Weeds
Hydrilla, Egeria, Naiads, Coontail, Elodea, Water Lettuce, Water Hyacinth, Giant Salvinia, Eurasian Watermilfoil, Pondweeds
Application Areas
Lakes, fish hatcheries, potable water reservoirs, golf courses, ornamental ponds, fish ponds, fire ponds
Safety Warning
Do not use in waters with cyprinid and salmonid fish (koi, carp, goldfish, trout, etc.)
Know before you buy
Still have a question?
Ask Metto anything about the SePRO Harpoon Aquatic Herbicide before you decide.
