Common Goldfish are similar to the Lemon goldfish and comet goldfish in appearance. They have streamlined bodies with well-developed and even fins.
Maximum size: 25+cm
Origin: South America
Ideal number kept together: 1+
Hardness: 143-536 ppm
Temperature: 6–18 °C
Ease of care
Like any Goldfish, Standards are extremely messy. This means that you will have to perform water changes and clean your tank more often that other species of fish. This is not too much of a problem, but can be time consuming.
The food we recommend is Goldfish flake or a Goldfish pellet.
The first thing to know about tank mates is that these fish are very active and will steal food from other fish. This means that slow moving or shy fish will not make the best tank mates.
Breeding / Sex
Standard Goldfish were likely first bred in Japan from Carp and are now one of the 125 Goldfish species traded worldwide. They will breed in groups of at least 4 or 5. They are very sociable animals and prefer to shoal in larger groups. Standards will spawn in the right conditions which means if you make sure the tank conditions are perfect, the fish will breed without any other intervention.
With proper diet and water conditions, the average lifespan of a Standard goldfish is around 10-15 years.