Goldfish

From Microcosm Aquarium Explorer

Carassius auratus - (Linnaeus, 1758)
Goldfish

A great fish for the aquarium or pond, but a poor choice for a warm-water tropical tank. Aaron Norman

[edit] Overview

The Goldfish, in all its many forms, is an excellent aquarium or pond fish, but not for a tropical tank. Although often thought of a subject for children, the goldfish has a throng of worldwide enthusiasts and breeders who consider it every bit as worthy as the exalted Koi.

The Goldfish is a long-lived coldwater species that will not do well in the warm-water conditions of the average tropical home aquarium with heater. Goldfish can survive water from zero to 30ºC (32-86ºF), but will do best in cooler room temperatures.

Goldfish also deserve more room than a typical fishbowl. One rule of thumb among goldfish fanciers is to provide a minimum of 8.33 L (10 US gal) of water per goldfish.

If you must have a fish that fits in a bowl or very small aquarium, consider a Siamese Fighting Fish (Betta).

Family: Cyprinidae

Other common name(s):

Native range:

Habitat: Pond-like conditions with gentle currents and with plants that can be replaced (goldfish will eat most delicate aquatic plants).

Maximum length: 45 cm (18 in)

Minimum aquarium size: 38 L (10 gal)

Water: Freshwater 21 °C (294 K, 70 °F) - 24 °C (297 K, 75 °F)

General swimming level: All levels.

[edit] Feeding

Omnivore. Easily fed on most aquarium rations. They will thrive if fed meaty items such as brine shrimp, Tubifex worms, Daphnia, mosquito larvae and Spirulina algae flakes.

[edit] Aquarium Compatibility

Peaceful. Goldfish deserve more room than a typical fishbowl. One rule of thumb among goldfish fanciers is to provide a minimum of 8.33 L (10 US gal) of water per goldfish.

[edit] Breeding/Propagation

Egg scatterers that provide no parental care. A mature female can produce several thousand eggs every week to 10 days. Eggs hatch in 4-5 days at 64–69ºF (18–20ºC). Fry will eat newly hatched brine shrimp, pulverized egg yolk, powered foods for newly hatched fish.

[edit] Notes

Goldfish can be long-lived in captivity, with 10 to 25 years not uncommon; there is one report of a fish living to the age of 43.

WARNING: Never release goldfish (or any other living matter from your aquarium) into local waters. They can spread disease to native species, especially carp, and cause ecosystem disturbances.

Reference: 101 Best Tropical Fishes
Image credit: AN
Text credit: KW
Facts about GoldfishRDF feed
Common name Goldfish  +
Family Cyprinidae  +
Genus Carassius  +
Image credit AN  +
Maximum length 18 in  +
Minimum aquarium size 10 gal  +
Native range China  +, and Japan  +
Reference 101 Best Tropical Fishes  +
Specific name auratus  +
Swimming level All levels.  +
Text credit KW  +
Water max temp 297 K (24 °C, 75 °F)  +
Water min temp 294 K (21 °C, 70 °F)  +
Water type Freshwater  +