Fritz Maracyn Bacterial Infection Treatment for Freshwater & Saltwater Aquarium Fish 10 Count

Fritz Maracyn is a broad spectrum antibiotic specially formulated for treating bacterial infections in both freshwater and saltwater aquariums. This essential fish tank aquarium supply effectively combats gram-positive pathogenic organisms responsible for disease such as body fungus (columnaris), fin and tail rot, popeye, and gill disease. Maracyn’s unique formulation allows for complete yet gradual dissolution in water, ensuring thorough treatment of infected fish.

• Active ingredient: Erythromycin

• For aquarium use only – not for human consumption.
• Keep out of reach of children and pets.
• Monitor fish for signs of stress and discontinue use if necessary.
• It may cause excess foam in protein skimmers; stop use if needed.
• Consult a vet or fish expert for diagnosis and treatment advice.

• Dosage: Add the contents of the packet per 10 gallons of water.
• Treatment Duration: Repeat the dosage every 24 hours for 5 consecutive days.
• Post Treatment: On Day 6, perform a 25% water change. If symptoms persist but show improvement, repeat the 5-day treatment. If no improvement is observed, consider using Maracyn Two and/ or Maracyn Oxy treatments.

For optimal results, use Maracyn in a quarantine tank. Remove activated carbon during treatment, but maintain adequate water flow or aeration. Always complete the full course of treatment, even if symptoms improve before completion.