Goldfish black - Carassius auratus auratus

A black goldfish is not as colorful as its orange, yellow or patterned variants, but black colored goldfish still have a charm of their own and look very classy in the garden pond. The body shape of our black goldfish is still close to the natural shape, so these beautiful ornamental fish are well suited for keeping in the garden pond.

Goldfish have a long history as pets - already more than a thousand years ago in China goldfish were kept as lucky charms and ornamental fish in beautifully decorated vessels. The goldfish Carassius auratus auratus is descended from the gable, which is also called silver crucian carp. Like all young goldfish, the young of the black color scheme are dark, however, this pond fish remains black even as it grows in size. Here in the online store you can buy 6-9 cm large black goldfish, fully grown the pretty pond fish can be 25-30 cm long.

Black goldfish of the subspecies Carassius auratus auratus are carp fish and as such very sociable group animals. The color of the goldfish within the group is quite unimportant. A group of at least 5 goldfish in a garden pond of 4 cubic meters is recommended - each additional goldfish needs another 800 liters. Goldfish grow quite old and relatively large, so should not be kept in ponds that are too small.

Goldfish are omnivores and will eat plants and small invertebrates and larvae of amphibians as well as juveniles. Goldies eat algae coverings and the soft foliage of some pond plants, they also eat mosquito larvae, for example, from pesky mosquitoes, and other insect larvae, various worms and small crustaceans. Possibly, the food they find in the goldfish pond is not enough for the ornamental pond fish. For this reason, you should feed your goldfish with a goldfish food that is specially adapted to their needs - you give only as much of it as the fish can quickly eat. In particularly warm summers, goldfish need supplemental oxygen, which you can provide by using a garden pond oxydator or pump.

Black goldfish are cold-water fish that are most comfortable at water temperatures up to 24 °C. In a pond at least 100-130 cm deep, the fish can easily overwinter outside; the water cannot freeze all the way to the bottom in such a deep pond. An ice freezer is advisable to improve the oxygen supply. In cold temperatures, the goldfish sink into the mud at the bottom of the pond, where they remain in cold torpor until spring arrives. Their metabolism is greatly reduced.

When the water warms up again in spring, the black goldfish, like their colorful counterparts, soon get into the mood for spawning. During mating, the female spawns in open water, where the male fertilizes the sinking spawn. Goldfish are quite voracious, feeding on both spawn and fry, so not many fry will come up in a deep goldfish pond. If the pond has a well weeded shallow water zone where the goldfish offspring can hide from the ever hungry adults, things look different.

Shallow ponds can freeze through completely. Therefore, the goldfish must be trapped out in late fall to prevent them from freezing. Let the goldfish overwinter cold but frost-free in an aquarium or tub. If goldfish cannot go into cold torpor during the cold season due to excessively high water temperatures, their natural rhythm will get out of sync, which can dramatically shorten their lifespan.