Hydrothol® Granular
Hydrothol® Granular

Hydrothol® Granular


Product Label

Hydrothol® Granular is an effective treatment for milfoil, various Potamogeton spp., Elodea and difficult to manage algae, such as Chara and Pithophora. Application rates for ponds and small lakes with little to no outflow generally range from 15-30 lbs. per acre-foot. 

  • Consult product label prior to use
  • Used as an alternative to conventional copper-based algae treatments
  • Does not bioaccumulate in the soil
  • Effective in murky water
  • Apply as evenly as possible over the treatment area
Due to governmental regulations, we do not ship these products to the following states: CA, CT, ME, NY, NJ, OR, and WA. Read and follow all local, state and federal regulations pertaining to the use and application of these products before ordering. We do not recommend the application of any chemical for algae, weed, parasite, or disease treatment during the summer months in ponds without an aerator in operation. The reactions of many chemicals cause rapid decomposition of heavy vegetation growth and/or greatly reduce the oxygen content of the water, causing distress and possible death to the fish.