Fishbiotic - Doxycycline - 100mg each (30 Count). No prescription required.

Fishbiotic Doxycycline
Doxycycline powder exerts a bactericidal action on gram positive and gram negative bacteria. Useful for control of some common bacterial diseases of fish including septicemia, mouth rot, and fin and tail rot.
Each contains: doxycycline hyclate
(active)..............................100 mg
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.
No Prescription Required. Free domestic shipping.