Look at the medaka on their backs
Guanbei medaka is a small freshwater ornamental fish cultivated by artificial breeding, hybridization and purification of wild medaka, with diverse varieties, simple feeding and reproduction, and can obtain new performance through the hybridization of various varieties and enjoy the joy of creation! Compared with small tropical fish such as peacocks, the biggest advantage is that the medaka can live very comfortably without filtering oxygen heating equipment, and compared with traditional ornamental fish such as koi goldfish, the small container of the golden medaka side can serve well, and its group swimming and grabbing effect is also first-class, which can be used as a desk decoration to add vitality, and can also be decorated with natural garden water!
Chinese scientific name: Medaka
Latin scientific name: medaka
Other names: rice field fish, rice fish, midaka, golden medaka
Realm: Animal kingdom
Phylum: Phylum Chordata
Subphylum: Vertebrate subphylum
Class: Bony fish
Suborders: Spokefin suborder
Order: Medaka order
Suborder: Macrogynosaurus suborder
Family: Macrognaceridae
Subfamily: Medaka subfamily
Genus: Medaka
Food: water fleas, green algae, cotyledons, red worms, nematodes
Habits: Floating in groups in the middle and upper layers of shallow water
Morphological characteristics
The individual is small, about 3 to 4 cm long, with bright and varied colors, and has a high ornamental quality. Each variety is distinguished by color, body shape, light performance, etc., and according to Yukio Oba's book "The Great Picture book of the Green Medaka" published in 2015, there are 456 varieties.
Body type features have ordinary body shape, phototype, sphere, short body type, no dorsal fin, eyelet, etc.; there are pure colors on the color system, brocade system; light performance has dry light, starlight, moon rainbow light, spiral light, body light and so on! The combination of various body type characteristics color and light performance has created a variety of species of guanbei medaka!
Habits of life
The upper fish of the genus Medaka is omnivorous, mild, gregarious and easy to raise. It has high salt resistance and low oxygen resistance, basically no requirements for pH value, can live in a water temperature environment of 0 ~ 40 ° C, suitable growth temperature of 15 ~ 30 ° C, extremely sensitive to chemicals.
Play with the status quo
According to Japanese sources, the medaka probably appeared in Japan during the Edo period, and its popularity was probably between the past one or two decades! At present, Japan has the largest feeding and ornamental group, has the most mature breeding technology, and has a large number of high-quality breeding fish! Although the spawning volume of the Medaka is very high, due to its high elimination rate, the price of excellent individuals is also high! And the domestic introduction is not long, there is not much understanding, there are fewer players.
Feeding points
The water temperature and water quality requirements of the guanbei medaka are not high, and it can live in a water temperature environment of 0 to 40 °C, and the suitable growth temperature is 15 to 30 °C. In the absence of filtration and oxygenation, the feeding density is 2 to 3 adult fish per liter of water, depending on the water quality, the water is generally changed once every 3 to 15 days, and 1/4 to 1/2 water is changed each time. Guanbei medaka has a more mixed diet, common live bait has shrimp, water fleas, red worms, etc., will also eat the algae in the tank, duckweed, the artificial feed is not picky, qualified manufacturers produce high-quality tropical fish granular feed and flake feed, as well as milled koi feed can be fed 1 to 2 times a day according to the situation.
Generally about 3 months old, the medaka has matured sexually and has the ability to reproduce. When the temperature reaches more than 20 ° C, the sunshine is sufficient to produce stable eggs, and the amount of eggs laid per day is about 2 to 50. During the breeding period, the tank should be placed in the wool ball and other things to collect eggs, and the eggs hanging on the ball should be picked out every day and moved to small containers such as disposable lunch boxes for incubation. During the incubation period, the eggs with broken mold are picked out every day, and the water is changed once, about 1/3 to 1/2 each time, and the incubation time is about 10 to 15 days.
The newly hatched fry are about 2 to 3 mm long, and after about a day of absorbing the yolk, the fish begin to feed! Generally, the opening is fed with egg yolks, green water, green algae powder, grasshoppers, rotifers, etc., and after about a week, you can use the shrimp and powder feed of the harvest year to feed normally.