How many aranda goldfish in a 100 gallon tank

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What’s the dimension of this tank?
 
I believe that’s a 120 gallon actually.
 
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MrsE88 MrsE88
Go_redfish Go_redfish
How many aranda goldfish in a 100 gallon tank
20 gallons per adult fish. Tack on another 10 gallons for every fish that is over 6 inches long. Double down on your filtration. Orandas can grow rather large. Biggest I've ever owned was 11inches. My largest currently is 9inches.
 
Side note: if you should decide you'd rather go with a smaller breed of goldfish, pet grade Demikin and Pearl Scale rarely exceed 5inches or so as adults. Short tailed Ryukin also have a high instance of producing a "dwarf" sized fish.

Example
I have a six yr old female Short tailed, bred her myself from large show quality parents, never been exposed to bad water in her growing yrs, and always fed high quality, but she and many of her siblings never got more than 2inches long. She's perfectly healthy, she's just tiny and adorable
 
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Agreed on the pearlscales, there are some really majestic ones.

I'd do about six for that tank, providing good filtration and waterchanges.
 
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