Hi matt_penny,
Blue nose hey? il look out for you on December the 12th when you boys come to us...
Il be the one with "I 8 THE BLUES" on my back
Anyhow, glad to hear you got rid of that monster, indeed not a good 2ft community tank inhabitant
With regards to setting up a Quarantine/Hosptial/Breeding Tank - A tank can be set up and kept running all of the time or can be setup as needed. Requirements are a heater, thermometer, mechanical filtering and some method of biological filtering to eliminate the toxic ammonia built up through fish waste.
Here are three methods:
* Set up a separate tank using a heater and a simple sponge filter. Maintain this tank with a few hardy fish such as Zebra Danios or White Cloud Mountain Minnows. The hardy fish will develop and maintain the bio filtration that will cultivate in the sponge filter. This method essentially requires that the tank be setup and running all of the time.
** If you don't want to have the tank up and running all of the time, you could have an extra filter running in the main tank and transfer this filter to the quarantine tank. When the new fish arrive or a diseased fish requires medication, you can use the water and the extra filter from the established tank. This would give you an instantly established tank ready to use.
*** Still another method that would not require running the quarantine tank all of the time would be to use Zeolites or another type of ammonia toxin remover. The Zeolites will absorb the toxic ammonia produced from the fish waste.
I personally use the second method - setting up a tank when needed. Simply run a spare filter on your main tank for a week (to establish b.bacteria) and then transfer it to a QT setup ready for use.
Gravel is not usually required in these tanks. In fact, I would recommend not using anything for a substrate. This makes cleaning much easier.
Water changes should be small and frequent to maintain water quality. Daily would be ideal.
Clean the sponge filter with chlorine free water at the same temperature as the aquarium. Use the water from your main tank is an excellent way of achieving this. This will keep the bacteria that have formed in the filter alive, eliminating the need to cycle or recycle the tank.
Thoroughly clean and disinfect the tank after using for treating sick fish.
If you are introducing new fish, keep them in the quarantine tank for at least two weeks, three weeks would be ideal.
Observe them daily for activity and any signs of disease. If diseases do appear, treat accordingly and keep the fish in the quarantine tank an additional two weeks after any signs of the disease have disappeared.
A note here. Don't medicate new fish just to be sure, medicating healthy fish weakens them and reduces their resistance to the medications. Only treat them if they are showing signs of disease.
Hope thats enough info, a
Google Search will reveal much of the same info
HTH