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Fritz Aquatics Maracyn Two is a powerful, broad-spectrum antibiotic (minocycline) designed to treat a wide variety of internal and external bacterial infections in both freshwater and saltwater aquariums. Unlike many treatments that only work on the surface, Maracyn Two is uniquely absorbed through the fish's skin, making it highly effective for deep-seated systemic illnesses.


Key Benefits

  • Targets Gram-Negative Bacteria: Specifically formulated to combat the most common pathogens responsible for severe conditions like dropsy (pineconing scales), septicemia (red streaks), and popeye.

  • Deep Systemic Relief: The active ingredient enters the fish’s bloodstream to fight infections from the inside out, providing a higher success rate for internal diseases.

  • Broad-Spectrum Versatility: It is effective against fin and tail rot, gill disease, and secondary infections from injuries. It is often the recommended "first choice" when the exact cause of illness is unknown.

  • Invertebrate & Plant Safe: Will not harm snails, shrimp, or other invertebrates, and is generally safe for live plants.

  • No Water Discoloration: Does not tint or stain aquarium water or silicone.


Usage & Dosing (10-Count Box)

  • Day 1: Add two packets per 10 gallons of water.

  • Days 2–5: Add one packet per 10 gallons of water every 24 hours.

  • Post-Treatment: Perform a 25% water change on Day 6.

  • Preparation: Remove chemical filtration (activated carbon) and turn off UV sterilizers. Increase aeration with an air stone, as temporary surface foaming or cloudiness may occur.

Maracyn Two 10 count

SKU: 47001
$15.99Price
Quantity
  • Shipping Policy

    To ensure the safety of our livestock and the most efficient delivery of your supplies, please follow these guidelines:


    Separate Orders Required

    Live fish and dry goods (equipment, food, etc.) must be purchased separately. Because livestock and dry goods require different packaging and shipping methods, they cannot be bundled together.


    Order Cancellations

    Any order containing both live fish and dry goods will be automatically canceled and refunded. You will then need to place two distinct orders to proceed.


    Shipping Methods

    • Live Fish: Shipped via UPS Next Day Air, UPS Next Day Air Early, UPS Next Day Air Saver, USPS Priority Mail Express to minimize transit time.

    • Dry Goods: Shipped via standard ground services.

    Thank you for helping us prioritize the health of your new fish! 🐟

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