This innovative line of fish medications from features a full range of well-known pharmaceutical grade antibacterial agents especially designed to treat fish. The basic and reliable antibiotic Penicillin treats many bacterial diseases that may afflict aquarium fish. Fish-pen is restricted and will not be shipped to many areas. See product instructions tab for details.
Directions: Add one tablet (250 mg) into aquarium for each 10 gallons of water to be treated. 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 the infection, it is recommended that extended baths in the medication continue for a minimum of 5 days & for not more than 10 days. Discontinue treatment with this medication if no improvement is noted within 5 days.