Fritz Mardel CopperSafe Saltwater and Freshwater Medication is a broad spectrum aquarium medicine formulated to fight off ick, velvet, and other external parasites. It effectively keeps aquarium water clear of parasites for up to one month.
CopperSafe is safe to use with UV Sterilizers, Protein Skimmers, Wet/Dry and Diatomaceous earth filters. After treatment, Fritz Coppersafe can be removed from the aquarium by water changes, fresh activated carbon, or other chemical filtration resins/pads.
Directions: For each size use 5mL for 4 gallons of water. Treats water for 1 month. Chelated copper treatment is recommended for the treatment of ick, flukes, anchor worms, velvet, protozoan diseases, and other external parasites.