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Pond Block Algae Control - 50 pk.

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Item: 259708

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Control and prevent annoying algae in your backyard pond with Tetra's Pond Block. One block treats 250 gallons.

Read more about algae control in ornamental ponds and using algaecides here.
Package Size50 pk.
Treats up to3000 gal.
Active IngredientsCopper sulfate pentahydrate: 1.02%, Diuron [3-(3,4-dichlorophenyl)-1,1-dimethlyurea]: 0.51%
Internal Id
Active Ingredients:

Copper sulfate pentahydrate*, 1.02%
Diuron [3-(3,4-dichlorophenyl)-1,1-dimethlyurea], 0.51%
Other Ingredients, 98.47%
*metallic copper equivalent 0.26%
Directions: Do not apply this product in a way that will contact adults, children or pets either directly or through drift. For containerized ponds and fountains only. Use one block for water volumes between 100 and 250 gallons. Initial dose may require one block for each 100 gallons. For regular maintenance, replace block when fully dissolved (usually after 30 days). Not recommended for use with live plants.

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