Photo 1 of hygger 20W Aquarium U-V Light for 100-1200 Gallon, Pond Water Clarifier for Green Water and Algae Clean, for Koi Pond, Large Fish Tank, Swimming Pool, Cold Plunge, Spa

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Photo 1 of hygger 20W Aquarium U-V Light for 100-1200 Gallon, Pond Water Clarifier for Green Water and Algae Clean, for Koi Pond, Large Fish Tank, Swimming Pool, Cold Plunge, SpaPhoto 2 of hygger 20W Aquarium U-V Light for 100-1200 Gallon, Pond Water Clarifier for Green Water and Algae Clean, for Koi Pond, Large Fish Tank, Swimming Pool, Cold Plunge, Spa