For difficult to control weeds the addition of Cutrine-Plus Liquid can boost effectiveness

Safe for fish

It contains marigold and humic acid to improve the pond environment for your fish

This professional-grade aeration system helps eliminate thermal stratification

5 CFM rating Rated at 30 psi

SePRO Cutrine Plus Granular Pond Algae Killer Select Size:30 Pound Bag For difficult to control weedsCutrine Plus granular, aquatic algaecide is a convenient ready to use contact algaecide that is safe and effective on various Algae. This great quality product contains the same active ingredient as Cutrine Plus Liquid but comes in an easy to use granular formula that is effective at killing Chara and heavy mats of Algae that grow along the bottom of your lake or pond. Cat litter size granules settle on and within algae and immediately begin attacking