The average life span of a Ryukin can range from 7 months (in bad conditions, fish bowl, unfiltered water ect.) all the way 'till 15 years old though in great conditions.
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Either an aquarium or a pond. NO BOWLS, PLEASE!
All goldfish are freshwater.
The same way you spawn any other goldfish.
Yes, but only for a very short time, for goldfish are known to grow rapidly.
Common types of goldfish available at pet stores include the Comet, Shubunkin, Fantail, Oranda, and Ryukin.
Yes, but your tank size needs to support it. If you mean that a regular goldfish is a long single-tail goldfish, then you need at least a 40 gallon tank just for the 2 fish due to the size potential of the common goldfish. If you mean a regular goldfish as in a round bodied fantail, or perhaps a ryukin, then you need at least a 30 gallon tank for the 2 fish.
Yes, but it might be better for the fish to have a tank partner by its side. Make sure it is another Fancy Varitey of Goldfish!
if you want it to live as long as you live you can stick with that
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A ryukin can grow pretty large in body size. Because of their shape, they tend to grow tallish, and fat. It's not uncommon for them to get to a 10 inch in length including tail fins, but their girth can grow quite massive.
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