Shukin is one of the artificially cultivated ornamental breeds of the aquarium " goldfish " ( Latin Carassius gibelio forma auratus ( Bloch, 1782 )), bred by crossing a ranch and an oranda at the end of the 19th century in Japan.
Content
- 1 History of Origin
- 2 Description
- 3 Conditions of keeping and breeding
- 4 In aquarium and pond farming
- 5 See also
- 6 Notes and footnotes
History of Origin
Shukin was bred by aquarist Kitigoro Akiyama when breeding goldfish in Japan. They were popular and kept in aquariums from 1892 to the 1900s. During the Second World War, many fish were lost and the breed was on the verge of extinction. However, thanks to the efforts of amateurs, the breed has revived, but continues to be rare even for Japan.
Description
The body shape of the shukin is as oblong as that of the ranch , but the caudal fin is like a fin of an oranda .
The colors of shukin are varied: from the transitional red, red with white, pure white, blue and silver shades.
Containment and propagation conditions
Fish contain:
- Water hardness (GH) up to 20 Β°;
- The acidity of the water (pH) is 6.5-8.0;
- Temperature (t) 12-28 Β° C.
Maturity and the possibility of their reproduction occurs one year after the hatching of fry from eggs. Preparation for spawning is similar to that described for other cyprinids : spawning is arranged in the center of a 100-150 liter aquarium with a spawning grid, one or two sprays and a bunch of small-leaved plants in the center. For one female 2 males. Fertility is from 2 to 10 thousand eggs. The larva leaves after 2 days. On the 5th day, the fry begin to swim. Feeding fry - rotifers .
For breeding:
- Water hardness indicators (GH) 8-15 Β°;
- The acidity of water (pH) is 7.0-8.0;
- Temperature (t) 22-28 Β° C.
In aquariums and ponds
The fish is suitable for keeping in a cold-water aquarium with a large space for free swimming. Beautiful in the greenhouses. Due to the endurance of the breed, it can be kept in a decorative pond on the street. Prefers a community of their own kind, bright light and plenty of free space. Effective filtration and regular water change. When making out a reservoir, it is recommended to use loose fine-grained soil, stones, driftwood, live or plastic plants, including floating ones. When designing, it is necessary to avoid the use of objects with sharp edges and edges, for which the veil species of fish can get hurt during swimming and, catching, break off the fins.
See also
- gold fish
- Veiltail
- Ranch
- Oranda