These are the bare essentials I recommend for quarantining:
- Anti-parasitic: Copper Power with a Hanna High Range Copper Colorimeter (HI702) for testing. Treats Ich & velvet.
- Anti-parasitic: Metronidazole (e.g. Seachem Metroplex); treats brook & uronema.
- Dewormer: Prazipro or API General Cure.
- Antibiotics: AAP Spectrogram or Nitrofuracin Green Powder
- Emergency bath treatments: Ruby Reef Rally and Formalin
- Internal Issues: Seachem Focus can be used with General Cure if internal parasites/intestinal worms are encountered (more info).
These are highly recommended, but not always necessary to have:
- Anti-parasitic: Chloroquine Phosphate is an alternative to using copper, and treats Ich + Velvet + Brook + Uronema.
- Dewormer: Fenbendazole can be used to treat prazi resistant worms (internal & external).
- Bath treatment: Methylene Blue treats ammonia burn, cuts, cyanide poisoning. Excellent “first response” treatment for a sick fish.
- Internal Issues: Neomycin (e.g. Seachem Neoplex) + Metronidazole (e.g. Seachem Metroplex) will not get absorbed by the fish’s gastrointestinal tract, thus making both excellent antibiotics to soak in food to treat internal infections (more info).
These are alternative/optional medications to use:
- Anti-parasitic: Cupramine with a Seachem or Salifert copper test kit. (Hanna HI702 Colorimeter will test this form of copper as well.)
- Antibiotics: Combining Kanaplex + Furan-2 + Metroplex is an old standby for treating bacterial infections (more options).
- Antibiotics: Erythromycin is the treatment of choice for eye infections.
- Antibacterial: Melafix (herbal remedy) is sometimes an effective treatment for mild bacterial infections.
- Antiseptic: Seachem StressGuard is useful to promote healing of injured ﬁsh (wounds).
- Misc: Epsom salt (1 tablespoon per 5 gallons) is sometimes useful to relieve swelling, especially “pop eye”.
- Misc: Soak fish food in vitamin supplements such as Selcon, Zoecon and Vita-chem. This will boost a fish’s natural immune system and is particularly useful for clearing viruses such as Lymphocystis.
- Misc: Soak fish food in garlic to stimulate appetite. Useful for new fish that refuse to eat.
- Misc: Always keep an ammonia reducer, such as Amquel or Prime, on hand. You never know when you might need it. A reducer can be useful for immediately neutralizing ammonia in the DT or QT (so long as no medications are present, especially copper), or when drip acclimating a new fish that has been in transit a while and ammonia has built up.
More information on the aforementioned medications can be found here: Medications and Treatments
This website provides SOLID information on many available aquarium medications: http://www.americanaquariumproducts.com/Aquarium_Medication.html
Including Antibiotics: http://www.americanaquariumproducts.com/AquariumMedication2.html
Antiparasitic & dewormers: http://www.americanaquariumproducts.com/AquariumMedication3.html
And even organic treatments: http://www.americanaquariumproducts.com/AquariumMedication4.html