Thomas Labs Fish Zole Metronidazole Antibacterial Fish Medication, 100 count

  • List Price:


  • Price:

    $58.25 FREE 1-2 Day Shipping on this item

  • You Save:

    $11.74 (17%)

In stock
- Quantity +
cw-icon-heart Created with Sketch. Add to Favorites

Deliver bacteria-busting medicine to your fish with ThomasLabs’ Fish Zole Metronidazole Antibacterial Fish Medication! This dissolving tablet contains Metronidazole, an antibiotic designed to combat parasitic and bacterial infections common in fish. Bactericidal action works to control gram-positive and many gram-negative bacteria that can plague your fishy friends. Put an end to pesky diseases brought on by bacteria such as Pseudomonas, Mycobacteria and Aeromonas. Plus, Metronidazole is extremely effective against anaerobic bacteria, making it the perfect antibacterial for fish!

Key Benefits
  • Cures many common fish ailments including Gill diseases and diseases caused by parasites.
  • Halts the multiplication of bacteria typically found in common fish diseases.
  • Effective against many organisms including all gram-positive and most gram-negative bacteria.
  • Easily dissolves in water, creating a medicinal bath that can be used for up to 10 days.
  • This unique formula is developed to work on both saltwater and freshwater fish.
Additional Details

For aquarium and ornamental fish only. Not for human use. This product should not be given to fish intended for human consumption. Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately.

See all items by Thomas Labs

  • Item Number
  • Aquarium Type

    Freshwater, Saltwater, All Aquariums

  • Product Form



Metronidazole 250 mg.


Add 1 tablet (250 mg) into aquarium for every 10 gallons of water. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While duration of treatment depends on type and severity of infection, it is recommended that extended medication baths continue for a minimum of 5 days but not more than 10 days. Discontinue treatment if no improvement is noted within 5 days. To remove harmless yellow color, change 20% of water and use charcoal filter until clear.

Keep container tightly closed and in a cool, dry place.

Customer Reviews
2 Reviews 2 Reviews 5 out of 5 Stars

100% Recommend

100% of reviewersrecommend this product

5 / 5

You've Already Reviewed This Item

Showing 2 Reviews

Sort by:
Filter by:
  • Quick dissolving

    By on

    Dissolved quickly and worked - gills are much better looking

    You liked it! Something went wrong. Please try again later. Report
  • Anti-Fungal Med

    By on

    We used this for a fungal infection called Trichomoniasis. It got rid of the infection. Everyone is healthier and happier.

    You liked it! Something went wrong. Please try again later. Report