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Common Freshwater Fish Medications

Part of the Freshwater Aquariums For Dummies Cheat Sheet

Sometimes, your freshwater fish get sick. If you notice signs of illness, try the following remedies — most of them applications you use in the whole tank — to treat your sick fish:

  • Salt: Common table salt is generally used to treat ich and other parasitic diseases.

  • Methylene blue: Used to treat diseases such as ich, fungus, and velvet.

  • Malachite green: Use this wonderful medicine to treat velvet, fungus, and ich.

  • Formalin: A bath-type treatment only, it should not be used in the main tank. A great remedy for parasites, it doesn’t work well on internal infections and can be very toxic.

  • Penicillin: Treats bacterial infections and is non-toxic.

  • Tetracycline: This antibiotic is great for bacterial infections and is non-toxic.

  • Acriflavine: Treats ich and fungus, but may turn water green.

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Freshwater Aquariums For Dummies Cheat Sheet


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