Unfiltered, but large, quarantine

[Yoimbrian]

So,
I turned my quarantine tank into a normal tank, and don't want to risk it's inhabitants. I'd like to buy another goldfish for my 100 gallon but want to quarantine him. They are 1-3", depending on which one I end up with.

I have a 100 gallon not filtered not cycled tote that I use to prepare water for water changes. Could I just fill that and leave him in there for two weeks?

The reason I think it'd be ok is all his waste will go to ammonia, but with a single 2" fish in a 100 gallon tank being lightly fed for two weeks I'm not seeing the concentrations getting high at all.


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[poppalina]

Why not just set up a 10-20 gallon with a sponge filter, you could take some BB from your established tank or run the sponge in the established tank to seed it.

 

[Gill Blue]

or you could just throw some media from one of your other filters into spare filter. or make a filter with some of the media and an empty soda bottle, or some pvc, or flexible tubing, or an empty butter tub and an air stone. or toss in a rock or some gravel from another tank.
all in all, it would probably be ok, but why not make sure?