Metro Plus

Size: 3.4 oz (97 grams)

Treats: 100 US gallon


Metro+™ is a powdered formula that was developed to offer the hobbyist an effective way to treat lateral line and hole-in-the-head diseases suffered by their pond, freshwater or marine fishes. This revolutionary, extremely safe and highly effective product offers you benefits no other metronidazole-based medication can!


Powerful Proven Ingredient 

  • Works systemically
  • Highly effective
  • Targets the infected areas
  • Can be used as a bath or with food
  • Included slime coat replacer helps speed external recovery
  • Extremely safe


Bath: As a bath treatment use Metro+™ for metronidazole-susceptible, microbial diseases of marine and freshwater aquarium and pond fishes (e.g. hole-in-the-head and lateral line erosion), use 1 capful (~9.7g) per 10 gallons (38L) of water. For optimum results, partial or complete water change (using Ultimate® or a combination of Liquid Buffered ClorAm-X® and Stress-X™) must be made prior to the beginning of treatment and every 24 hours for five (5) to seven (7) days consecutively or until mortalities cease or healing of lesions occurs. If improvement is not noted within three (3) days, discontinue treatment and consider other therapy.

Oral: For systemic (internal) infections, Metro+ can be fed mixed with fish food or preferably used as part of a prepared food. Check out our article on how to make medicated feed. Please Note: Adding Metro+™ directly to food provides a potentially bitter coating that could keep your fish from partaking readily



CALIFORNIA PROP 65 WARNING: This product is known to contain detectable amounts of a chemical or chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.


We encourage all hobbyist to fully complete the treatment as per directed. Failing to fully complete the treatment by stopping short of the required days, will only fix short term problems and not completely fix the underlying issue. Furthermore, resulting in parasite & bacteria immunity towards the medication leading to more complications.


* is not liable for any incorrect use of medications purchased on this website, please research prior to purchasing. Store in a cool area, away from children's reach. For use on ornamental fish only, not intended for human consumption. Please contact your nearest emergency service if accidentally consumed.

Metro Plus: Lesion Cure