Thomas Labs Fish Zole controls a number of bacterial infections in fish, including areomonas and pseudomonas genera, gill diseases and chondrococcus, as well as "Hole-in-the-Head" and "Angel Problems" in Cichlid and Discus.
Directions: Add one tablet (250mg) 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 infection, it is recommended that extended medication baths continue for a minimum of 5 days and not for more than 10 days. Discontinue treatment if no improvement is noted within 5 days. To remove harmless yellow color, change 20% of water and use charcoal filter until clear.
Ingredients: Metronidazole (250mg per tablet).
Note: For aquarium and ornamental fish only. Not for human use. Keep out of the reach of children. Keep container tightly closed and in a cool dry place. Not to be given to fish intended for food use.