Thomas Labs Fish Flex Forte (Cephalexin) is for use in aquariums for the treatment of bacterial activity. Cephalexin is a cephalosporin antibiotic and acts by inhibiting the synthesis of bacterial cell wall, leading to cell death. Cephalexin is active against both gram-positive and gram-negative bacteria. Resistance can develop among some gram-negative rods (e.g., E. coli).
Directions:
Fish: Add one capsule into aquarium for each 20 gallons of water. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While treatment duration depends on the type and severity of infection, it is recommended that extended baths in the medication continue for a minimum of 5 days and for not more than 10 days. Discontinued treatment if no improvement is noted within 5 days.
