Which antibiotics should I have on hand in case of a problem? If I notice a problem that needs treating, I don't want to have to wait a day or two till I can get to the LFS.
Well, it depends really. If you have fish that are prone to diseases - example...if you have neon tetras then get a treatment for neon tetra disease. The most common diseases I would say are fin rot, swim bladder, and white spot/ich. In this case, I keep melafix and protozin handy for the white spot and fin rot, and any fish that have swim bladder or constipation, I always feed them shelled peas.
Hope this helps!
If I think of any more diseases that are fairly common, then I'll edit this post and let you know!
I think tetracycline wipes out the bacteria colony doesn't it? I have a 5 gal hospital tank so that's not a problem as long as I can treat fish separate from main tank.