I have ordered from this company Free Shipping on Fish Antibiotics- Fish Mox, Fish Flex, & More! in the past and was satisfied with their products.More information.
The antibiotics labeled for fish or aquarium use are the exact same medication you would buy for yourselves at the pharmacy. I have checked everything I have ever boughten on pill identification sites for the size, shape, color, and distinguishing writing. Every pill comes up with the correct medication names along with name of the pharmaceutical company it was manufactured at. .
To the best of my knowledge the FDA made Azithromycin impossible to get online few years ago. I still keep looking for it.If anyone sees a source for Azithromycin please let me know. preferably a PM so I will get a notification email. I have been unable to find any in about 4 months and I am getting a little worried that I will not be able to replace.