With the Salifert Profi Test NH4 you can determine the ammonia content in freshwater oder seawater exactly and easily. Invertebrates cannot tolerate copper however many remedies for fish contain copper. With these test you can check if Copper already exists in the aquarium after a cure.
The Salifert Profi Test Cu -Copper can perform approx. 50 measurements in freshwater or marine water.
The pH value must be between pH 7.5 and 9.0 during the test.