Out of Stock Fritz Aquatics Mardel Maracyn Two Antibacterial Aquarium Medication, slide 1 of 1

Fritz Aquatics Mardel Maracyn Two Antibacterial Aquarium Medication

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Keep your tank healthy and thriving with the Fritz Aquatics Mardel Maracyn Two Antibacterial Aquarium Medication. The fast-dissolving powder formula uses maracyn-two, an advanced broad-spectrum antibiotic to treat common bacterial infections including body fungus, gill disease, popeye, tail and fin rot, and dropsy. It works in both freshwater and saltwater fish, and helps treat common symptoms like clamped fins, swollen eyes and patchiness. Plus, it won’t harm invertebrates so you can use it around shrimp and other antenna-wearing aquarium buddies.

Key Benefits
  • Treats body fungus “columnaris”, fin and tail rot, popeye, dropsy, septicemia and gill disease in freshwater and saltwater fish.
  • Formulated with maracyn-two, a broad-spectrum antibiotic that is absorbed by the fish through the skin to enhance effectiveness.
  • Easy-to-use powder formula dissolves fast to start treating symptoms like clamped fins, swollen eyes, corner hiding and others.
  • Safe to use around invertebrates including shrimp, and is ideal for tetras, cichlids, catfish, goldfish, angelfish, clownfish, damsels and more.
  • Available in 8-pack and 24-pack boxes to accommodate any size tanks.

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

See all items by Fritz Aquatics

  • Item Number
  • Aquarium Type
    Freshwater, Saltwater
  • Fish Type
    Tropical Freshwater, Marine Fish, Goldfish, Betta
  • Product Form

First day add the contents of two packets per 10 gallons of water. Second through fifth day add one packet per 10 gallons of water. Repeat this five day treatment once if needed.

Cloudiness may occur while using Maracyn® Two.

Important: Treat for five days even if visible signs disappear. May be used concurrently with Coppersafe®, Maracyn® or Maracyn® Oxy. Maracyn® Two will not harm invertebrates.

Maracyn® Two may cause excessive foam production in protein skimmers, stop use of skimmer during treatment if excessive foaming is a concern.

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  • 5 out of 5 stars

    Lifesaver for Goldfish

    By Finnedfriend on Nov 3, 2021

    My fan-tail goldfish suffered from fin rot for 8 long months. I tried 3 other highly-recommended medications and kept the water pristine, all to no avail. Her fins continued to deteriorate. I finally tried one course of Maracyn Two and within a week her fins showed new growth! They are completely grown in now and she looks beautiful and healthy again.

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