PraziCleanse is a safe and effective anti-parasitic treatment to control unwanted parasites. Effective against skin and gill flukes, tapeworms, flatworms, and turbellarians. This treatment is suitable for fresh and saltwater aquariums, and will not discolor the water. It does not harm plants, other invertebrates or uninfected fish. Do not use in systems with tube worms or feather dusters. Use for Tapeworms, Flatworms, Fish Lice, or Gill & Skin Flukes. Does Not Discolor Water. Easy to Measure Packet Dosing System. Bulk Jars Available for Larger Systems. Safe for Fresh and Saltwater Systems.