Doxycycline powder exerts a bactericidal action on gram positive and gram negative bacteria. Used for the control of some common bacterial diseases of fish including septicemia, mouth rot, and fin and tail rot--keeping your fish healthy and active.
Each single packet contains: doxycycline hyclate
Directions: add one packet or 100 mg into aquarium for each 15 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 & for not 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.
Caution: 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 human consumption.