Fritz Maracyn Two Freshwater & Saltwater Treatment, 20 Ct

Fritz Maracyn Two is a powder treatment for freshwater and saltwater aquariums that Fritz describes as a broad-spectrum antibiotic, sold as a 20 count.

Quick facts

• Species: Fish (freshwater and saltwater aquariums)
• Form: Powder
• Count: 20 ct

Why owners like it

• Fritz says Maracyn Two has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease.
• The brand notes it is absorbed by the fish through the skin.
• Fritz describes it as primarily effective against gram-negative pathogenic organisms, and potentially effective against some gram-positive and fungal infections.
• The brand calls it their most broad-spectrum treatment, a first choice when the cause of disease is unknown.

During the prescribed treatment, the brand says the concentration of the active ingredient in the fish's fluids rises to a therapeutic level and is available to fight systemic infections susceptible to its action. Check the current label and ask your veterinarian about specific conditions, medications, or diet changes.

Questions owners ask

What is Maracyn Two used for? Fritz describes it as a broad-spectrum antibiotic developed for aquariums, which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease.

Is it listed for both freshwater and saltwater? Yes, the product name lists it as a Freshwater and Saltwater Treatment, and Fritz describes it as developed for use in aquariums.

Should I talk to a vet before using it? Yes, check the current label and ask your veterinarian about individual conditions, medications, or diet changes.