03-31-2009, 03:24 AM
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Gold fish would be too messy.(poop) If you are not going to be adding any fish to your other tanks,, a betta would work. BUT if you decided to add some fish to one of your tanks and wanted to quarantine them,,You would have to move the betta who might not like company. Is there any small schooling fish that appeal to you that you could add to one of your other tanks? if so,, you could keep two or three of these small fish in your quarantine tank and when new fish were purchased,,Move the small schooling fish to one of your large tanks. I keep a bristlenose pleco in quarantine tank and when tank is needed for quarantine ,,I move the pleco to one of two larger tanks.
Perhaps the easiest way to go would be to purchase (when possible),,A small sponge filter that runs on small air pump. Stick this sponge filter in a mature or (cycled ) tank and leave it run. When you need the quarantine tank,, just take the sponge filter,which will be colonized with good bacteria,,from the large cycled tank and,,put it in the quarantine tank. You then have the ability to make quarantine tank safe for fish whenever you want, and you don't have to feed the bacteria in quarantine tank until you need the tank.