Hydrothol 191

Hydrothol 191

Hydrothol 191 is a registered, broad spectrum, organic, aquatic algaecide and herbicide. It is an excellent alternative to copper products. Hydrothol 191 is extremely effective in controlling hydrilla, milfoil, pond-weeds, elodea, chara, spirogyra, and pithophora. This product can be harmful to fish populations if used incorrectly. Always wear gloves, eye protection, and cover skin when using the product.

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