Best Pond Algaecides

API POND ALGAEFIX Algae Control 1-Gallon Bottle

API ALGAEFIX Algae Control 16-Ounce Bottle

CrystalClear Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 46,080 Gallons, 1 Gallon

Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated for Small Ponds and Water Features, Treats up to 8,000 Gallons

Crystal Blue Copper Sulfate Algaecide - Granular Aquatic Grade Copper Sulfate for Pond Algae Control - 5 Pounds

Airmax Ultra Pondweed Defense Aquatic Weed & Plant Killer, Easy Spray Application to Clean & Clear Large Pond & Lake Water, Liquid Treatment Control Concentrate, Fish, Pet & Animal Safe, 1 Gallon

Airmax Knockdown Defense 2-in-1 Liquid Pond Algae Control, Effective & Fast Acting Algaecide, Aquatic Weed Treatment for Clear Water in Ponds & Lakes, Liquid Formulation for Easy Use, 16 fl oz

Crystal Plex - Lake and Pond Algaecide Treatment - Liquid Copper Algaecide Kills and Prevents Various Types of Algae (Planktonic, Filamentous, Chara) - 1 Gallon Treats up to 1 Acre

Aquascape Clean Pond Water Treatment for Dosing System SL, 96092

Tetra Pond Fountain Block 6 Count, Controls Algae Growth In Ornamental Fountains