Fritz Mardel Maracyn Plus 8 oz

Out of stock
FTZ 48105
  • For infections of: Fin and Tail Rot, Popeye, Mouth fungus, Dropsy (swollen body, protruding scales) and ulcers
  • Revolutionary technology that delivers the antibiotic directly to the fish
  • Non-toxic to invertebrates

Maracyn Plus contains two powerful antibiotics, Trimethoprin and a Sulfonamide. Biospheres products make use of a revolutionary technology that delivers the antibiotic directly to the fish. Multi-layered microspheres attach to the fish and break down one layer at a time releasing the antibiotics in a controlled regulated manner. A filming agent, Chitosan, which has a molecular structure similar to the natural mucous coat of a fish, seals the treatment in contact with the tissue surface.

Maracyn Plus is non-toxic to invertebrates. A slight reduction in biological activity will result from the use of Maracyn Plus. After treatment, carry out a partial water change and add FritzZyme bacteria culture to boost the biological filter. Normal biological activity will resume after Maracyn Plus has been removed from the water. Partial water changes and fresh carbon in the filter are all suitable methods to remove Maracyn Plus from the water.

Special note on Maracyn Plus

Maracyn Plus should not be used in conjunction with any other antibiotic treatments. Complete the full treatment and carry out a partial water change before using another antibiotic. Because of the unique action of the microspheres contained in BioSpheres® liquid products, care should be used when combining Maracyn Plus with medications from other sources.


Follow dosage directions as detailed on the product packaging.

Add 2 teaspoons (10 mL) per 10 gallons of water. Treat on days 1, 3 and 5. Use as soon as the first signs of disease are noted. Treated water may appear cloudy at first due to the presence of the microscopic spheres; 30 minutes to 1 hour after treatment all cloudiness is gone. Maintain normal filtration and air.

Note: Consult a veterinarian or fish expert for assistance in diagnosis of disease causing organisms and treatment options.

More Information
SKUFTZ 48105
Applicable Dangerous Goods RegulationsNot Applicable
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