Many experienced hobbyists use no medications prophylactically in their quarantine tanks, only treating if a fish disease pops up. This works well and is perfectly acceptable. There is nothing wrong with that approach. Using medication prophylactically in the quarantine aquarium for me...
A quarantine tank on a budget quick and easy to set up. Quarantine tank: Keep the newly purchased fish in the tank for six weeks before moving them to the main tank.
Using a Quarantine Tank to Treat Fish for Disease. The quarantine tank is also known as the hospital tank.You could permanently run a quarantine tank as long as the fish that go from the store into the tank do not develop or show any symptoms of disease.

Most aquarium treatments fail because they treat symptoms, not systems. Quarantine is not an inconvenience. It is the most effective disease-prevention tool in fishkeeping. : Sunny Banerjee. If you want healthier fish, fewer losses, and stable tanks: Quarantine first.
Treating Fish During Quarantine. If illness appears, the quarantine tank becomes a hospital. Treat fish with targeted medications based on symptomsantiparasitic for ich, antibacterial for fin rot, or antifungal for cottony growths. Avoid mixing medications unless recommended.

As we can see from the illustration, Quarantine Tanks For Treating Aquarium Fish Disease has many fascinating aspects to explore.
Treating the entire tank can harm healthy fish, plants, and beneficial bacteria. A hospital tank isolates the problem and minimizes risk. Prevents disease from spreading to healthy tank mates. Allows precise dosing of medications.
In many cases, the first step in treating aquarium fish disease is to isolate the affected fish. When red spots are caused by underlying infection, removing the sick fish to a quarantine tank not only helps prevent the spread of the disease to other fish but makes the task of treatment...
Aquarium fish diseases can cause visible abnormalities on your fishs body. Areas to pay close attention to include your fishs eyes, fins, and swim bladder.Treating Aquarium Fish Diseases. Step 1 Check your aquariums water quality.