I plan on getting a new fish soon to add to my divided 5 gallon, and I'm wondering on how to quarantine the new one. I have a tank similar to this. http://www.walmart.com/ip/Hawkeye-2-...-Pets/14660256
I'm currently using it as a hospital tank to treat a fish with internal parasites with epsom salt.
How would I set it up as a quarantine tank. Should I put gravel and the undergravel filter/air tube in? How often would I change the water? How long should I quarantine the new guy?