The Yaritanago is a river fish that lives in the western part of the Korean Peninsula in East Asia and in Honshu, Shikoku, and northern Kyushu in Japan. It belongs to the Abravidae family of the Carp family and is characterized by its silvery white coloration with a bluish brown back. In this article, I would like to explain in detail the characteristics of the Yaritanago and how to keep them.
What is Yaritanago?
The Yaritanago belongs to the family Carpidae (Carpidae), genus Abravidae. The habitat of the Yaritanago is the western part of the Korean Peninsula in East Asia, and Honshu, Shikoku, and northern Kyushu in Japan. In the Kanto region, Kasumigaura in Ibaraki Prefecture and Teganuma in Chiba Prefecture, and in the Kansai region, Lake Biwa in Shiga Prefecture are famous habitats.The Yaritanago is low and flattened at the base of its body. It is named the Yari (spear) Tanago because of its appearance. It is characterized by its silvery-white body color with a bluish-brown dorsal area. It is the most widely distributed species of bitterling among the Japanese bitterling species.
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How to keep Yaritanago
The Yaritanago is an easy species to keep if you know how to keep them. The life span of the Yaritanago is approximately 2 to 4 years. Their body size is approximately 8 to 10 cm. However, both lifespan and body size vary depending on the environment in which they are kept and the food they are fed. They prefer slightly alkaline to neutral water quality, with a pH of 7.0 to 8.0. They can live in water temperatures between 5-25℃.
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Points to keep in mind when mixing swimmers
First of all, Yaritanago have a mild temperament. However, it is recommended to mix them with medium-sized species because they may chase smaller specimens than the Yaritanago.Smaller species of Tanago should not be mixed with the same species of Tanago. When it is time for breeding, they spawn on bivalves, but if they want to spawn on each other, they often fight and the smaller species may not be able to breed well. If you must include them in your breeding program, please be very careful.
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Points about spawning
Many people who keep Yaritanago want to breed them. In the wild, bitterling bitterling spawn in the spring. If they are kept in captivity, the timing when the water temperature reaches around 20 degrees Celsius is the signal for spawning. When it is time for spawning, the males will display iridescent nuptial colors on their backs and abdomens. The entire body turns dark green, the back of the gill cover turns a vivid vermilion, and the lower abdomen and abdominal and tail fins turn black. The female has a short yellowish tube called the oviduct extending from the rump.After about one year of age, the oviducts emerge and the eggs are ready to lay.
Tanago lay their eggs on bivalves, whereas other ornamental fish such as killifish and goldfish lay their eggs on water plants. This spawning method is the biggest obstacle in trying to breed Tanago. This is because, unlike aquatic plants, you have to keep bivalves. If the bivalve that the bitterling spawned dies before the eggs hatch, the eggs will die with it. Another difficulty is that there are fewer specialty stores that deal in bivalves than in aquatic plants. The types of bivalve mollusks used by bitterlings for spawning include the pine cone mussel, the dove mussel, the echinoderm oyster, and the mussel. If you are not sure, we recommend that you ask at a specialty store. If you want to breed bitterlings, the first step is to find bivalves.
When the bivalve is in the aquarium, the female lays her eggs in the gills of the shell using an egg tube. The male fertilizes the eggs by applying sperm to them immediately after the female lays them. The eggs hatch about 3-4 days after spawning, consume the yolk sac (nutrition received from the parents) in about a week, and grow to about 1 cm in about 20 days and emerge from the shell. At this time, the juvenile fish may have a shellfish baby attached to its fins. Just as the bitterling uses the shells, the shells use the bitterlings to expand their habitat. The male may protect the bivalves after laying eggs, but the fry are often eaten, so if you are keeping them in an aquarium, it is recommended to move the shells to another tank after confirming the spawning. Successful spawning of bitterling depends on how well you can keep the bivalves stable, so if you are worried about them or are not confident about handling them, we recommend that you purchase bivalves from a specialty store just before the bitterling spawns.
Points to keep in mind when keeping Yaritanago
The Yaritanago has a silvery-white body color with a bluish-brown dorsal area. It is the most widely distributed species of bitterling among the bitterling species living in Japan. It can be found in rivers and streams around you.However, in recent years, their habitat has been decreasing due to the influence of non-native species. They are also essential to the traditional Japanese ecosystem, so they are a highly recommended river fish in terms of education. If you are interested in Yaritanago, we recommend that you take a look at them at a specialty store.
