Applied Biochemists Copper Sulfate is a granular aquatic-grade algaecide formulated for pond and lake algae control. Apply to actively growing algae when water temperatures are above 60°F. Treat no more than half the pond at a time to prevent oxygen depletion harmful to fish.
- Controls most species of algae, including filamentous and string algae
- Also effective against bacteria, roots, plants, snails, and fungi
- 99% Copper Sulfate Pentahydrate — granular formula
- Most effective when cast over thick, floating algae mats
- Not for use with Koi or Goldfish
- Not intended for small decorative ponds, water features, or pools
- Available in a 5 lb package