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...
Why Does Tank Size Matter for Goldfish? The image of a goldfish in a bowl is indelibly imprinted on most humans brains.For Common Goldfish or Comet Goldfish: A single Goldfish: 55 gallons (it is not advised to house them alone).

Such details provide a deeper understanding and appreciation for Single Goldfish Tank Size Requirement.
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.

In fact, in 2008, a law was passed in Switzerland making it illegal to keep one goldfish alone. Goldfish Tank Size Requirements.A single common or comet goldfish needs at least a 30-gallon tank, with an additional 12 gallons per extra fish.

Goldfish Tank Size Formula. A simple starting estimate for fancy goldfish is to give the first fish a base amount of water, then add extra volume for each additional fish. The calculator uses this rule-of-thumb
Minimum Tank Size. 10 gallons temporarily acceptable for juveniles 20 to 30 gallons for adult; add 10 to 20 gallons per adult fish depending on their type. Temperature Range. Single-tail Goldfish: 60 to 80F Fancy Goldfish: Varies by type, but most do best with a heater-stabilized tank.