Fix Pen 500 (Penicillin) Tablets 500mg 30 Count a water change and charcoal

a water change and charcoal filter can clear any residual yellow tint in the water

Store with the lid tightly closed at a controlled temperature of 59°-86°F (15°-30°C)

commonly used to treat a variety of infections in pigeons

It targets both gram-positive and certain gram-negative bacteria

It's particularly formulated for ornamental fish

Fix Pen 500 (Penicillin) Tablets 500mg 30 Count a water change and charcoalFIX PEN 500 (Penicillin) treats various bacterial diseases in ornamental fish, such as pop eyes, infected eyes, fin or tail rot, gill disease, columnaris disease, and skin ulcerations. Add one tablet (500 mg) to the aquarium for every 20 gallons of water. Repeat after 24 hours, and perform a partial water change between treatments. The duration of treatment should be based on the type and severity of the infection. Typically, using the medication for