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Fritz Mardel Maracyn

In stock
FTZ 46000 FTZ 46040
Grouped product items
Fritz Mardel Maracyn - 8 Count

SKU - FTZ 46000 , UPC - 080531460009

Fritz Mardel Maracyn - 24 Count

SKU - FTZ 46040 , UPC - 080531460405

  • Highly effective treatment for bacterial infections in fish
  • Effective against gram-positive pathogenic organisms
  • Symptoms inlcude clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration, change in swimming behavior
Fritz Mardel Maracyn
Fritz Mardel Maracyn Fritz Mardel Maracyn

About Mardel Maracyn®

Provides relief from bacterial infections such as body fungus, gill disease and popeye in fresh and saltwater aquariums.

Mardel Maracyn® is a specially compounded broad-spectrum antibiotic (erythromycin) which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. It was developed for complete but gradual dissolution in water. It is primarily effective against gram-positive pathogenic organisms. Symptoms of clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration, change in swimming behavior or corner-hiding can be signs of possible bacterial infection.

All suspected bacterial infections should be treated immediately.

Mardel Maracyn® is non-toxic to invertebrates. Follow dosage directions as detailed on the product packaging.

Directions & Dosage

Add the contents of one package per 10 gallons of water and repeat every 24 hours for 5 days. Repeat this 5 day treatment only once if needed.

Important: Treat for 5 days even if visible signs disappear. Maracyn® may be used concurrently with Coppersafe®, Maracyn® Two or Maracyn® Oxy. Maracyn® will not harm invertebrates. Maracyn® may cause excessive foam production in protein skimmers. Stop use of skimmer during treatment if excessive foaming is a concern.

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

Treating an aquarium less than 10 gallons? Watch for instructions!




Size Treats Item Number
8 count N/A 46000
24 count N/A 46040
More Information
SKUFTZ 46000 FTZ 46040
UPC080531460009 080531460405
Shipping OptionAll Shipping
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