Copper Power Green Freshwater Copper Treatment is for the treatment of freshwater fish diseases such as external parasites, ich, and fungus. It is safe for plants. The Copper Power Blue Marine Copper Treatment is for the treatment of marine fish diseases such as external parasites, ich, oodinium, and fungus. WARNING: It is toxic to snails and invertebrates. Related Articles:Copper Power - Product SpotlightIBasic Marine Fish Diseases and Treatments Overview

From the Copper Power - Product Spotlight Article
If you keep fish long enough, you will get sick fish. The most common diseases fish get are external parasites such as freshwater and saltwater ich, marine and freshwater velvet, anchor worms, and brooknella. All of these diseases can be easily treated with one simple medication, Copper. Copper has been around for a very long time and the Copper Power brand has stood out as the go-to copper medication in the aquarium industry for many years. If you have never used copper, here is a brief guide on how to use the medication. Understanding how to use copper is essential to any meaningful quarantine of marine fish....continued