ALLIGARE Argos Algaecide and Herbicide Weed Killer for Fast Control of Algae & Hydrilla in Lakes, Ponds, Canals & Irrigation Systems - Copper Based Algaecide - Safe for Potable Water - 1 Gallon

Alligare’s Argos is a liquid, copper-based formula used in numerous use sites to safely and effectively defend against floating and submersed algae.

• FAST-ACTING ALGAE CONTROL: This pond algaecide works quickly to eliminate planktonic algae within 24-48 hours and filamentous algae in just 3-4 days, restoring clear water fast so you can enjoy your lakes, ponds, or irrigation systems without waiting
• BROAD-SPECTRUM WEED SOLUTION: Keep your water bodies healthy and weed-free with ease, as our algaecide for pond targets a wide range of algae types and the invasive Hydrilla plant, delivering reliable control with copper concentrations as low as 0.4 PPM
• SAFE FOR DIVERSE WATER USES: Treat lakes, fish hatcheries, potable water reservoirs, and irrigation canals confidently. The pond algae control leaves no water use restrictions, so you can manage algae without compromising water safety or usability
• CONSISTENT CONTROL FORMULA: Thanks to its ethanolamine chelated copper formulation, Argos copper algaecide stays effective even in hard or mineral-rich waters by preventing copper precipitation, ensuring consistent algae and weed control wherever you apply it
• SMART APPLICATION TIPS: Maximise pond algae control results by applying in spring at 60°F when plants grow actively, treating calm waters, and breaking up heavy algae mats. For heavy infestations, treat only half the water body at once to protect aquatic ecosystems