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Aqua Meds NitroCure™
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 25 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 50 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 100 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 250 grams.
Aqua Meds NitroCure back label showing nitrofurazone dosage instructions and treatment directions for koi and goldfish.
Aqua Meds NitroCure™
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 25 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 50 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 100 grams.
Aqua Meds NitroCure nitrofurazone treatment for koi and goldfish bacterial infections. 250 grams.
Aqua Meds NitroCure back label showing nitrofurazone dosage instructions and treatment directions for koi and goldfish.

Aqua Meds NitroCure™

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Aqua Meds NitroCure™

NitroCure™ is Aqua Meds' pure nitrofurazone treatment for koi and goldfish. It is a practical first choice for many common bacterial problems, especially when the issue is external or when you need to treat a pond, tank, or group of fish rather than chasing one fish at a time.

NitroCure™ is commonly used for ulcers, fin rot, tail rot, gill disease, and other bacterial issues where reducing bacterial pressure in the water is an important part of the treatment plan. It can be used as a dip, short-term bath, or long-term bath depending on the situation.

Why Choose NitroCure™?

  • Pure nitrofurazone with no fillers.
  • Good first-line treatment for many common bacterial infections in koi and goldfish.
  • Well suited for external bacterial issues and pond- or tank-level treatment.
  • Flexible application options: dip, short-term bath, or long-term bath.

When NitroCure™ Makes the Most Sense

  • Multiple fish are acting off and you want to treat the system, not just one fish.
  • You are dealing with typical external issues such as ulcers, fin rot, tail rot, or gill irritation.
  • You want a strong starting point before stepping up to a deeper treatment.

If fish are clearly getting worse, not eating, or the infection looks deeper or more advanced, it may be time to step up to a different treatment.

Not sure if this is the right one?

If you are comparing NitroCure, KoiCure, and KanaRx, this quick guide explains when to use each one and why.

Read the guide

Treatment Coverage

One 25 g container of NitroCure™ covers the following approximate water volume depending on the treatment method used:

Treatment Method Dosage Gallons Treated per 25 g Jar
Dip
(15–20 minutes) 		100–300 mg/L
(~0.38–1.13 g/gal) 		≈ 6.6–21.7 gallons
Short-Term Bath
(several hours) 		25 g / 1,000 gal
(6.6 mg/L) 		≈ 1,000 gallons
Long-Term Bath
(continuous) 		19 g / 1,000 gal
(5 mg/L) 		≈ 1,316 gallons

Note: Coverage estimates are based on one 25 g container of NitroCure™. Larger sizes are available for bigger ponds.

  • Aqua Meds NitroCure Instructions

    NitroCure™ Treatment Instructions

    1. Dip Treatment (Individual Fish)

    Purpose: Rapid, high-concentration exposure for severe localized infections (ulcers, fin rot, mouth rot).
    Duration: 15–20 minutes.

    Dosage: 100–300 mg/L (≈ 0.38–1.13 g per gallon).
    Example: 5 gallons of dip water → 2–6 g NitroCure.

    1. Fill a clean container with fresh, dechlorinated pond water.
    2. Add the correct amount of NitroCure and stir until dissolved.
    3. Place the koi in the dip for 15–20 minutes, observing closely.
    4. Provide aeration during treatment.
    5. Remove fish immediately if signs of stress occur.
    6. Return koi to the main pond or recovery tank.

    2. Short-Term Bath Treatment

    Purpose: Broader antibacterial exposure for several fish or moderate infections.
    Duration: 6–8 hours.

    Dosage: 25 g per 1,000 gallons (≈ 6.6 mg/L).
    Examples: 250 gallons → 6.25 g | 1,000 gallons → 25 g

    1. Pre-dissolve NitroCure in a bucket of warm pond water.
    2. Add evenly across the treatment tank or pond.
    3. Maintain strong aeration throughout.
    4. Leave fish in treatment water for 6–8 hours.
    5. Perform a 25–30% water change after treatment if practical.

    3. Long-Term Bath Treatment

    Purpose: Continuous, lower-dose exposure for systemic infections or pond-wide outbreaks.
    Duration: 5–7 days (re-dose if water changes are made).

    Dosage: 19 g per 1,000 gallons (≈ 5 mg/L).
    Examples: 1,000 gallons → 19 g | 5,000 gallons → 95 g

    1. Mix the correct amount of NitroCure in a bucket of pond water.
    2. Distribute evenly around the pond.
    3. Keep filters and aeration running as normal.
    4. Avoid carbon or other chemical filtration during treatment.
    5. Observe fish daily for improvement.
    6. After 5–7 days, perform a 25–30% water change.

    Quick Reference Dosage Table

    Treatment Dosage Example Coverage
    Dip 100–300 mg/L
    (0.38–1.13 g/gal)    		 5 gal → 2–6 g
    Short-Term Bath 25 g / 1,000 gal
    (6.6 mg/L)    		 1,000 gal → 25 g
    Long-Term Bath 19 g / 1,000 gal
    (5 mg/L)    		 5,000 gal → 95 g
  • Aqua Meds NitroCure Precautions

    Precautions & Safety Information

    • Keep Out of Reach of Children: Store NitroCure™ in a secure location, away from children and pets.
    • For Ornamental Fish Only: Not for use on fish intended for human consumption.
    • Protective Gear: Wear gloves and avoid inhalation of powder when handling. Wash hands thoroughly after use.
    • Storage: Store in a cool, dry place away from direct sunlight and moisture.
    • Filtration: Do not use activated carbon or chemical filter media during treatment, as they will remove the medication.
    • Water Quality: Ensure strong aeration and monitor ammonia, nitrite, and oxygen levels throughout treatment.
    • Avoid Overdosing: Carefully measure NitroCure™ to prevent unnecessary stress or harm to fish.
    • Disposal: Dispose of unused product and empty containers in accordance with local regulations.

    Note: NitroCure™ is intended for use in koi ponds and ornamental water features only. Always follow dosage instructions carefully.

  • Choosing Between NitroCure™, KoiCure™, and KanaRx™

    Q: How do NitroCure™, KoiCure™, and KanaRx™ differ?
    A: All three are pure Aqua Meds antibiotic treatments, but they are used at different stages:

    • NitroCure™ (nitrofurazone) – First-line external bath treatment for most ulcers, fin rot, tail rot, and gill disease. Can be used as a dip, short-term bath, or long-term bath.
    • KoiCure™ (oxolinic acid) – Strong immersion treatment for more serious or persistent external infections, especially those with a gram-negative or septicemia appearance (red streaks, bloody patches).
    • KanaRx™ (kanamycin sulfate) – Deep, broad-spectrum antibiotic for severe, resistant, or internal infections. Can be used as a bath, pond immersion, or medicated food.

    We do not recommend using them at full strength at the same time. Instead, they can be used sequentially (for example: start with NitroCure, step up to KoiCure if needed, and reserve KanaRx for the most advanced cases or internal infections).

    Q: Which one should I use first?
    A: As a simple rule of thumb:

    • For new, straightforward external infections, start with NitroCure™.
    • For more serious or persistent external infections, consider KoiCure™.
    • For severe, resistant, or clearly internal infections, or when you need medicated food, use KanaRx™.

    For a more detailed comparison and dosing overview, read our full guide:
    NitroCure™ vs. KoiCure™ vs. KanaRx™: Which Aqua Meds Antibiotic Should I Use?

  • Is this the right Aqua Meds® product for my sick fish or pond water problem?
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