Combat bacteria that threaten your aquarium fish with this effective non-prescription aquarium antibiotic. Thomas Laboratories Fish Zole (Metronidazole) boasts high potency and contains pharmaceutical grade ingredient. Manufactured for use for freshwater or saltwater aquarium and ornamental fish only.
Thomas Laboratories Fish Zole (Metronidazole) exerts a bactericidal action on gram-positive and some gram-negative bacteria. Useful for control of some common bacterial fish diseases including Aeromonas and Pseudomonas genera and Mycobacterial group (gill diseases, chondrococcus).
Shop all Aquarium Medications.
Please click on "More Information" for directions for use.