Algae and green water can be a persistent problem in ponds, especially during the summer months. Algae can turn the water green and make it look unappealing, while also robbing oxygen from the pond and creating an unhealthy environment for fish and other aquatic life. Algae and green water treatments can help to control the growth of algae and restore the clarity of the pond water. These treatments can come in the form of liquid or powder formulas, and may include ingredients like copper sulfate or barley straw extract.