How Much Copper Is Too For Fish?
How Much Copper Is Too For Fish? At recommended Cu2 + concentrations of 0.15–0.20 mg/L, free copper is toxic to a number of organisms that are pathogens of fish, including the marine parasites Cryptocaryon irritans and Amyloodinium ocellatum. How long do you treat fish with copper? Ichthyophthirius (freshwater) / Cryptocaryon (saltwater) Looks like salt sprinkled