Health & Remedies
Turns out that fish antibiotics are the same pills as the generics that are sold to Costco, Walmart, etc. Not the same formula - the same PILLS. They're available over the counter from vet/fish stores with no prescription, you can get: Ampicillin, Cephalexin, Ketoconazole, Penicillin, Amoxicillin, Erythromycin, Metronidazole, Tetracycline, Doxycycline (bird antiobiotics section) and Sulfamethoxazole.
Source : http://i.ebayimg.com/t/antibiotics-fish-sulfa-fort
Does this belong to you Or do you know who sells it ?