A lot of folks, myself included, have been buying fish/aquarium grade antibiotics for a while now. Recently my favorite source dried up. I called them to ask why they no longer had the products and they stated that it is becoming difficult to carry them because the FDA  is scrutinizing the industry. What was told to me was that the capsules were still available, in packs of 12. I did find other sources, but some publicly searchable web pages can no longer be found via Google – hidden pages that I couldn’t navigate to through the web sites search engine – I had to know the page URL. I think this source is going to dry up at some point, once the AMA /FDA /DEA  turn their attention to people using these sources as alternatives to ‘regular medicine’ they will get banned somehow.
But I do have a medical grade freezer, thanks to information gleaned from SurvivalBlog – I found a refurbished one for $70 at an auction. It had been rejected because the housing had some dents in it. I’m stocking up. Again). I wouldn’t take my ‘the sky is falling’ e-mail as gospel, but it might be worth a look into by someone with more time on their hands than me. – Jim H. in Colorado