Cutrine® Plus provides effective control of planktonic and filamentous algae. Cutrine® Plus Algaecide and Herbicide controls a broad range of algae, specifically surface filamentous and planktonic algae including: Cyanobacteria, Green algae, Golden algae and diatoms, Filamentous Green Algae and Chara and Nitella as well as the rooted aquatic plant, Hydrilla verticillata. Ideal for algae on the surface or in the water column – use Cutrine® Plus Granular Algaecide for deeper waters or on bottom-growing algae.