Information

The goldfish - Wanted poster


Characteristics

Surname: Goldfish
Latin name: Carassius gibelio forma auratus
class: Fishes
size: up to 20cm
mass: ?
Older: 1 - 30 years
Appearance: orange-yellow
Sexual dimorphism: No
Nutrition type: Omnivore (omnivor)
food: Algae, mosquito larvae, worms
distribution: worldwide (farmed fish)
original origin: China
Sleep-wake rhythm: twilight and nocturnal
habitat: Fresh water
natural enemies: Heron, predatory fish
sexual maturity: ?
mating season: April May
social behavior: Swarmfish
Threatened with extinction: No
Further profiles of animals can be found in the Encyclopaedia.

Interesting facts about the goldfish

  • The goldfish is one of the carp fish and was created as pure farmed fish estimated 2500 years ago in China. There, the animals were worshiped for many centuries as sacred creatures and are still a popular subject for works of art of all kinds.
  • Today, these freshwater fish are considered to be popular pets in aquariums of various sizes, garden ponds, and other low-flowing waters all over the world.
  • The direct ancestor of the goldfish is the dark green to black colored silver carnelian, which has a silvery shimmer on the sides and was originally native to East Asia.
  • Most goldfish have an intense orange-red or orange-yellow color, but there are also white and black-speckled cultivated forms.
  • Over the centuries, intensive breeding efforts have also produced species with different body and head shapes, prominent eyes, and veiled and frayed fins. Males and females are indistinguishable due to their appearance.
  • Within the genus of goldfish there are about 120 known breeding forms. These include the fan tail, the veil tail, the lion's head, the Perlschupper and the Himmelsgucker.
  • Goldfish can reach body lengths of up to 20 centimeters, depending on the species, but many species remain only a few centimeters in aquariums. If goldfish lives in large ponds, in individual cases they can even grow up to half a meter long.
  • Goldfish have a very high life expectancy and can reach an age of up to thirty years if they are kept in the right way.
  • As sociable animals, goldfish feel most at home in swarms of at least five individuals. In order to provide sufficient space, at least thirty liters of water per fish should be taken into account.
  • Goldfish are omnivorous and feed themselves in the garden pond in addition to fish food and mosquito larvae, water fleas, worms and aquatic plants and algae. Occasionally oatmeal, eggs or corn are a welcome change.
  • Most of the goldfish are undemanding and easy to keep. Only a few breeding forms are very sensitive and need careful care.
  • Goldfish living in open water proliferate easily and abundantly. In April and May, the males nudge the females repeatedly to encourage spawning. After laying the eggs, they are fertilized by the male, after only a few days the larvae hatch. These are transparent and adhere easily to aquatic plants due to their sticky surface, where they develop into young fish, which are initially black and only take on the characteristic bright color after a few months.
  • Goldfish, which are exposed in the wild or escape from captivity, have little chance of survival due to their striking color, as they are easy prey for predators like larger fish or birds.