Seachem MetroPlex™ is a safe and effective treatment for several common protozoan and anaerobic bacterial diseases in both freshwater and marine fish. Its active ingredient, metronidazole (70%), specifically targets stubborn infections like Ich (White Spot), Velvet, and Hexamita (often associated with Hole-in-the-Head disease). Designed for versatility, it can be dosed directly into the water or mixed with food to treat internal infections without harming your aquarium's biological filter.
MetroPlex™ provides a potent defense against insidious diseases while remaining gentle on your established aquatic ecosystem.
Broad Spectrum Efficacy: Effectively treats Cryptocaryon, Hexamita, and Ichthyophthirius, making it an essential tool for both external and internal parasitic issues.
Bio-Filter Safe: Formulated to be non-toxic to nitrifying bacteria, ensuring your nitrogen cycle remains stable throughout the treatment process.
Reef-Safe Feeding Option: When used in a medicated food mix with Seachem Focus™, it is excellent for treating parasites in tanks containing sensitive invertebrates.
Non-Staining Formula: Does not discolor aquarium water or equipment and can be easily removed with activated carbon after treatment is complete.
Low Overdose Risk: An exceptionally safe profile makes it forgiving for hobbyists, reducing the stress typically associated with medicating a tank.
How do I dose Seachem MetroPlex™ in the water? Remove all invertebrates and turn off UV, ozone, and chemical filtration (like Carbon or Purigen). Use 1–2 measures (included) per every 40 L (10 US gallons) every 48 hours for up to 3 weeks.
How do I make a medicated food mix? Mix 1 scoop of MetroPlex™ with 1 scoop of Seachem Focus™ and 1 tablespoon of food (frozen or pellet). Use with GarlicGuard™ to enhance appetite; this mix can be refrigerated or frozen between feedings.
Is it safe for plants and corals? When dosed in the water, invertebrates are extremely sensitive and must be removed. However, when used as a medicated food mix, it is safe to use in tanks containing corals and invertebrates as the medication is ingested directly by the fish.
Seachem Focus™: The essential binding agent to use when mixing MetroPlex™ into fish food to prevent the medication from leaching into the water.
Seachem GarlicGuard™: A natural scent and flavor enhancer that encourages finicky or ill fish to eat medicated food.
Seachem MatrixCarbon™: The ideal high-capacity carbon to use for removing residual medication from the water once the treatment period is over.
