Kordon Rid Fungus 16oz – Natural Fish Fungus Treatment

About This Product

The Kordon Rid Fungus 16oz is a natural, herbal-based aquarium treatment formulated to help prevent and control external fungal infections and certain single-celled diseases affecting freshwater and saltwater fish. Featuring Kordon’s proprietary naphthoquinone-based formula, this broad-spectrum treatment offers aquarium enthusiasts a convenient solution for managing common fungal problems while maintaining a healthy aquatic environment.

Fungal infections can develop when aquarium fish experience injuries, stress, or poor water conditions. These infections frequently appear as white, gray, or cotton-like growths on the body, fins, mouth, or other external surfaces. Left untreated, fungal infections can spread and potentially cause serious health complications.

Kordon Rid Fungus combines five natural herbal ingredients containing naphthoquinones to help control a variety of external fungal organisms, including those responsible for cotton-like growths and other visible fungal infections. The formula is also marketed for certain external protozoan and dinoflagellate infections, providing broad treatment coverage when the exact cause of an infection has not yet been identified.

Unlike traditional chemical-based fish medications, Kordon Rid Fungus contains no formalin, malachite green, copper, or other heavy metals. According to Kordon, its gentle herbal formulation is safe for freshwater and marine fish, aquatic invertebrates, and beneficial biological filtration when used as directed.

The treatment does not alter aquarium pH or oxygen levels and does not require water changes between daily applications. This simplifies the treatment process while allowing aquarists to maintain consistent therapeutic conditions throughout the recommended treatment period.

Each 16oz bottle treats up to 960 gallons of aquarium water at the standard dosage, making Kordon Rid Fungus an economical choice for home aquariums, multiple-tank systems, and aquarium maintenance.

Whether you’re addressing visible fungal growth, treating certain external single-celled infections, or taking preventive measures with stressed fish, Kordon Rid Fungus provides a convenient natural treatment option for freshwater, brackish, and saltwater aquariums.

Features:

• Natural herbal-based formula contains five organic herbal ingredients featuring patented naphthoquinones.
• Helps treat external fungal infections including white, gray, and cotton-like fungal growths on aquarium fish.
• Broad-spectrum treatment formulated for certain external fungal, protozoan, and dinoflagellate infections.
• Supports preventive aquarium care by helping control susceptible infections before they become severe.
• Freshwater and saltwater compatible for use in tropical fish tanks, brackish aquariums, and marine fish systems.
• Safe for aquatic invertebrates according to the manufacturer, including compatible shrimp, snails, and other aquarium inhabitants.
• No copper or heavy metals provides an alternative to conventional copper-based aquarium medications.
• Free of formalin and malachite green uses a natural herbal formula rather than these traditional chemical treatments.
• Maintains biological filtration without harming beneficial filter bacteria when used as directed.
• Does not alter aquarium pH or dissolved oxygen levels under normal treatment conditions.
• No water changes required between treatments simplifies daily medication procedures.
• Compatible with Kordon water conditioners including NovAqua, AmQuel, and Fish Protector.
• Easy liquid dosing allows accurate treatment of different aquarium sizes.
• Concentrated 16oz formula provides up to 960 gallons of treatment at the standard dose.
• Suitable for preventive treatment during periods of fish stress or increased infection risk.
• Made in the USA by Kordon, an established aquarium and pond care manufacturer.

Specifications:

• Brand: Kordon
• Product name: Rid Fungus
• Manufacturer item number: 39856
• Product size: 16 fl oz (473ml)
• Product type: Natural aquarium fungal and external disease treatment
• Form: Liquid
• Active ingredients: 5% natural herbal ingredients containing naphthoquinones
• Inactive ingredients: 95%
• Primary function: Prevention and treatment of external fungal infections
• Additional applications: Certain external protozoan and dinoflagellate infections
• Formula type: Organic herbal-based treatment
• Contains copper: No
• Contains formalin: No
• Contains malachite green: No
• Water compatibility: Freshwater, brackish, and saltwater
• Invertebrate compatibility: Manufacturer identifies product as safe when used as directed
• Biological filter compatibility: Yes, when used as directed
• pH impact: Does not alter aquarium pH
• Standard dosage: 5ml per 10 US gallons
• Alternative dosage: 10 drops per US gallon
• Treatment capacity: Up to 960 US gallons per 16oz bottle
• Treatment frequency: Once daily under standard treatment conditions
• Water changes during treatment: Not required
• Recommended storage: Cool, dark location away from direct sunlight
• Country of manufacture: USA
• Recommended application: External fungal infections, compatible single-celled disease treatment, and preventive care for freshwater and marine aquarium fish

Dosage Instructions:

Standard Treatment:

1. Shake the bottle thoroughly before each use.
2. Remove activated carbon from aquarium filtration systems to prevent the medication from being absorbed.
3. Turn off protein skimmers during treatment when possible, as they can remove herbal ingredients from the water.
4. Add 1 teaspoon (approximately 5ml) for every 10 US gallons of aquarium water, or 10 drops per gallon.
5. Repeat treatment once daily until visible signs of infection have disappeared.
6. Continue treatment for an additional 3–4 days after the last visible symptoms are gone.
7. After treatment is complete, perform a partial water change of at least 20%.

Additional Treatment Guidelines:

• Preventive treatment: Dose once daily for approximately seven days, following manufacturer recommendations.
• Severe infections: Kordon provides additional dosing protocols for established infections. Consult the manufacturer’s instructions before increasing dosage or frequency.
• Water changes: Routine water changes between treatments are not necessary, although a partial water change is recommended after treatment.
• Filtration: Maintain biological filtration and adequate water circulation throughout treatment.
• Protein skimmers: Temporarily discontinue operation when possible to prevent removal of active herbal components.
• Activated carbon: Remove during treatment and reinstall after the treatment period if desired.

Important Usage Information:

Kordon Rid Fungus is formulated primarily for external fungal and certain single-celled infections. It is not intended to treat viral infections, bacterial diseases, parasitic worms, flukes, or fish lice.

Monitor fish closely during treatment and maintain appropriate water quality, oxygenation, and filtration. Persistent symptoms, rapid breathing, serious tissue damage, or unusual behavior may indicate a condition requiring a different treatment.

Use only as directed for aquarium fish. Keep out of reach of children and pets.

Recommended application: A natural herbal aquarium treatment for hobbyists seeking to manage external fungal infections and certain single-celled diseases in freshwater, brackish, and marine fish aquariums.