Seachem SulfaPlex (Fungal/Bacterial/Protozoan)

Seachem SulfaPlex (Fungal/Bacterial/Protozoan)

Product form

SulfaPlex™ Treats many bacterial, fungal, and protozoan infestations Broad spectrum antibiotic and anti-fungal medication Most effective of the sulfa drugs... Read more

Free pickup in our shop(s)

3 in stock

$12.99

    • Guaranteed secure & safe checkout.

      shop pay
    • Shipped today? Order within: Jan 09, 2026 23:59:00 -0500
    • Free shipping on all orders above 200.00

    Description

    SulfaPlex

    • Treats many bacterial, fungal, and protozoan infestations
    • Broad spectrum antibiotic and anti-fungal medication
    • Most effective of the sulfa drugs in saltwater
    • Absorbed through gills

        Overview

        SulfaPlex™ is an effective and safe treatment for many bacterial, fungal and protozoan infestations in the aquarium. While it can be used in both freshwater and saltwater, it is particularly effective against the common bacterial and fungal infections of freshwater fish. It is also among the gentler antibiotics, and great for treating fish that are already stressed. It is easily removed with carbon and does not impair nitrification.

        Active ingredients: sulfathiazole (69%) Inactive ingredients: excipients (31%)

        Indications

        SulfaPlex™ is appropriate for treating a variety of bacterial, fungal and protozoan infestations. Below are some of the more common diseases treatable with SulfaPlex™. Be aware that many diseases and infections share similar physical and behavioral symptoms, e.g. clamped fins, lesions, loss of appetite.

        Directions

        Dosing in Water

        Remove all invertebrates - these are extremely sensitive to medication. Turn off UV filters, ozone filters, and remove chemical filtration like MatrixCarbon™and Purigen®. Use 2-3 measures (included) per every every 40 L (10 US gallons). Repeat this dose every 72 hours for a maximum of 3 weeks.

        Dosing in Food

        SulfaPlex™ is most effective when used in the water, but it can also be added to the food. Feed the medicated food mix (recipe below) every day until the infection clears or up to 3 weeks.

        • 1 scoop SulfaPlex™
        • 1 scoop Focus™
        • 1 tbsp food (preferably pellets or frozen food)
        • A few drops of water if using a dry food

        To enhance palatability use with GarlicGuard™.

        After Treating

        When the treatment period is over, SulfaPlex™ can easily be removed using activated filter carbon like MatrixCarbon™. It does not linger in the substrate or filter media of the tank.

        Pros and cons

        • Sustainably produced
        • Ideal for everyday use
        • May discolor in direct sunlight

        Recently viewed products

          © 2026 Aquatica Superstore, Powered by Shopify

            • American Express
            • Apple Pay
            • Diners Club
            • Discover
            • Google Pay
            • Mastercard
            • PayPal
            • Shop Pay
            • Visa

            Login

            Forgot your password?

            Don't have an account yet?
            Create account