Fine Feed Grade Copper Sulfate is a widely used algaecide and parasite treatment for ponds. It effectively controls many species of both filamentous (mat-forming green) algae and planktonic (single-cell blue-green) algae. Another common use for these chemicals is as a molluscicide for the control of snails and slugs.
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Although every situation is different and you should first read the warnings and indications on the labels. Use with caution in ponds that contain fish because overuse can cause a sudden algal die-off which will deplete O2 levels in the water and cause the fish to asphyxiate. The three most common modes of application are shown below:
Copper Sulfate Pond Treatment products should be maintained in a cool and dry area away from direct sunlight. Keep containers of this Pond Treatment chemical sealed well. Solutions of Fine Feed Grade Copper Sulfate should be stored in tanks made of 316 Stainless Steel or plastic tanks.