Fish Metronidazole | Powerful Antibiotic for Bacterial & Parasitic Infections - Fish Zole 

Effective Treatment for Aquarium Infections

Fish Metronidazole, also known as Fish Zole, is a trusted antibiotic and antiparasitic medication formulated to treat bacterial infections, parasitic infestations, and protozoan diseases in aquarium fish. It is commonly used for hexamita, hole-in-the-head disease, and internal infections, ensuring the health and safety of your fish in both freshwater and saltwater aquariums.

Shop More Fish Antibiotics

Top Fish Metronidazole Products Available

✔ Fish Zole 250mg – 60 Tablets – Ideal for treating mild bacterial and protozoan infections.
✔ Fish Zole Forte 500mg – 60 Tablets – Higher potency for stronger infections and aggressive treatment.
✔ Fish Zole Forte Powder Packets – 12 Count – Convenient single-dose packets for easy and precise treatment.
✔ Fish Zole Forte Powder Packets – 60 Count – Bulk option for long-term care and large aquariums.

Why Choose Fish Metronidazole?

✔ Broad-Spectrum Antibiotic & Antiparasitic – Effectively treats bacterial infections, protozoan infestations, and parasitic diseases.
✔ Safe for Aquarium Use – Designed to eliminate infections while preserving beneficial bacteria in the aquatic ecosystem.
✔ Multiple Strength & Formulation Options – Available in tablets and powder packets for different treatment needs.
✔ Trusted Quality – Manufactured under strict quality control standards for purity and effectiveness.

Dosage Instructions

✔ Add 1 tablet (250mg or 500mg) per 10 gallons of aquarium water.
✔ Repeat every 24 hours for 5-10 days, depending on infection severity.

Usage Tips & Cautions

✔ Remove activated carbon filters during treatment for maximum effectiveness.
✔ Perform 20-25% water changes between doses to maintain water quality.
✔ Not for human use.

Related Products

• Fish Mox - Amoxicillin 500mg (100 Capsules) – A broad-spectrum fish antibiotic.
• Fish Flox - Ciprofloxacin 500mg (60 Capsules) – Targets gram-negative & gram-positive infections.
• Fish Flex - Cephalexin 500mg (100 Capsules) – Effective against bacterial infections.
• Fish Sulfa Forte - Sulfamethoxazole 800mg, Trimethoprim 160mg (100 Tablets) – Treats bacterial and parasitic infections.
• Fish Doxycycline - 100mg (60 Capsules) – Broad-spectrum antibiotic for fish.

Fish Metronidazole Curing Hole in the Head Disease

“Hole in the head” disease in a cichlid (Oscar fish): This disease (Hexamitiasis) causes pitted lesions on the head and lateral line of fish​. It’s often linked to parasitic flagellates (like Hexamita) and secondary bacteria in the wounds. Fish Metronidazole is an antibiotic effective against anaerobic bacteria and protozoans, making it a go-to treatment for hexamita infections that cause hole-in-the-head syndrome​. By medicating food with metronidazole, hobbyists can target the internal protozoa causing the lesions, while also controlling bacterial infection in the open “holes,” allowing the sores to heal​