- Methylene Blue
- Potassium Permanganade
- Aquarium Salt
I use Kordon's M. Blue, good for fungal and some bacterial issues. It's a good first line of defense against ammonia burns, fin rot, cloudy-eye and fungi.
P.P. can be found in Jungle's Clear Water from Wal-Mart. I use it for disinfecting equipment and for fungi like Saprolengia. It can also help clear out your water from nasties.
- Maracyn II
That covers most of your bases. KanaPlex is a nice broad spectrum antibiotic good for most bacterial issues, it's great for internal issues as well if the fish will eat a pellet soaked in it. Furan-2 is great for Columnaris, can be combined with kanaPlex for that as well. Maracyn II is another broad spectrum used for Pop-eye, Cloudy-eye, and other external issues. And PraziPro (Praziquantel) is your parasite medication.