Native to China, the goldfish is a relatively small member of the genus Carassius (which also includes the Prussian carp and the crucian carp). It was first selectively bred for color in imperial China more than 1,000 years ago, where several distinct breeds were developed.
What is the right goldfish tank size? In this video I go over a couple misconceptions about goldfish and how to properly select the right aquarium size!Affil...

Small Fish Tank With Goldfish. Colorful Goldfish Aquarium Setup.Fancy Goldfish Care Guide: Setup, Feeding & Tank Tips for Beginners | Goldfish care, Goldfish, Goldfish tank.

Goldfish tank size calculations. Its not uncommon to see 100 litres, or thereabouts, quoted as the minimum for one goldfish, with varying amounts of additional litres for additional fish.

Goldfish live for many years and grow continuously. When selecting your tank, think about the adult size of your fish, not their current juvenile size. Its much more cost-effective and less stressful to start with an appropriately sized tank than to upgrade repeatedly.
When you keep a goldfish in a small tank, youre actually stopping it from reaching its full potential length and size. The larger your tank, the more chances your goldfish have of living a longer life and growing to their full size.