Fish Flex (cephalexin) is a broad spectrum antibiotic used in the treatment of a wide range of bacterial infections. It is effective against a number of pathogenic bacteria associated with ornamental fish. Available in 500 mg strengths in bottles of 100 capsules. 

Directions For Use

Add contents of one capsule (500 mg) into aquarium for each 20 gallons of water to be treated. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While treatment duration depends on type and severity of the infection, it is recommended that extended medication baths continue for a minimum of 5 days and not more than 10 days. Discontinue treatment with this medication if no improvement is noted within 5 days.  Manufactured by Thomas Labs.

Keep out of reach of children. Fish Antibiotics are for aquarium use only. Intended for ornamental fish and/or ornamental organisms, and not intended for use with fish that are intended for human consumption.