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FIX PEN 500 (Penicillin V Potassium) is a high-potency antibiotic formulated to treat common bacterial infections in ornamental and aquarium fish. This fish-safe medication is especially effective against gram-positive bacteria and some gram-negative strains. FIX PEN 500 helps manage conditions such as Flexibacter infections, fin rot, and tail rot, promoting faster recovery and healthier aquatic environments.
Active Ingredients (each tablet): Penicillin V Potassium….500mg
Add one 500 mg tablet of FIX PEN 500 for every 20 gallons of aquarium water. Repeat treatment after 24 hours. It is recommended to perform a partial water change between doses to maintain water quality. Continue treatment for a minimum of 5 days and no more than 10 days, depending on the type and severity of the infection. If no visible improvement is seen after 5 days, discontinue use and consult a veterinarian experienced in aquatic medicine.
Store in a tightly sealed container in a cool, dry place. Avoid exposure to direct sunlight and moisture to preserve potency.
For aquarium use only. Not for human consumption. Do not administer to fish intended for human consumption. In case of accidental overdose or adverse reaction, contact a health professional immediately. Keep out of reach of children and pets.