Fritz Mardel Maracyn Aquarium Water Treatment, 280-g jar

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The Fritz Mardel Maracyn Aquarium Water Treatment helps to treat bacterial infections in fish, ensuring your finned friends look and feel better. It’s highly effective against body fungus, gill disease and popeye in both fresh and saltwater aquariums. Symptoms of these bacterial infections include clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration, a change in swimming behavior or corner-hiding. This treatment is non-toxic to invertebrates and gradually dissolves in your tank water.

Key Benefits
  • Helps to relieve bacterial infections like body fungus and gill disease in fish.
  • Bacterial infection symptoms include clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration and a change in swimming behavior.
  • Effective against gram-positive pathogenic organisms.
  • Non-toxic to invertebrates.
  • Gradually dissolves, follow dosing directions.

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

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.

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