Crystal Blue Copper Sulfate Algaecide - Granular Aquatic Grade Copper Sulfate for Pond Algae Control - 5 Pounds

This 99% Copper Sulfate Pentahydrate is a powerful solution for controlling algae in large bodies of water, such as ponds or lakes.

It effectively eliminates most species of algae, including filamentous and string algae, while also preventing swimmers itch.

The product should be used on actively growing algae in water temperatures above 60F, and is most effective when cast directly onto thick floating algae mats.

However, it's important to note that too much vegetation can deplete oxygen levels for fish, so it's crucial to monitor the amount of algae treated at once.

Additionally, this product should not be used in bodies of water that include sensitive species such as Koi, Goldfish, Trout, or Grass Carp.

With its high concentration of copper sulfate and effectiveness against a wide range of algae, this product is the perfect solution for keeping your pond or lake crystal clear and safe for all aquatic life.