Hydrothol® Granular

Hydrothol Granular provides control of both weeds and algae.  Used primarily as an algicide at rates of 0.05-0.3 ppm, it provides excellent control of a broad spectrum of algae including planktonic, filamentous, and branched algae.    It works relatively quickly providing algae control in a few days.  There are no restrictions on treated water used for swimming, fishing or irrigation*.

*Read and follow label directions.

Weeds controlled by Hydrothol® Granular

All Weeds controlled by this product

Plant & Algae Guide

State Registrations


Calculate Product Needs