Join Date: Aug 2011
Location: Kingston, Ontario
Those are single tails, and while you can keep them in there technically, most people say it's not enough room (as they swim fast, while fancy goldfish "waddle" through the water".) However it's easy to find fancies with the calico colors.
Some sizes for fancies..
Bubble eye: 6" (can not mix with other types-too fragile)
Black moor: usually will hit 10"
The only thing is.. I would not get 7 orandas, as that extra 2" is a lot! These are general sizes for pet quality fish.
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