The pirarucu is a tropical fish of the family Arapaimaidae of the order Arowana, native to the Amazon River in Brazil, located in South America. It is a tropical fish with a long, flat face and a flat tail fin. The pirarucu is famous as a "living fossil" because it has hardly changed its appearance for about 100 million years. In this article, we would like to explain in detail the characteristics of the pirarucu and how to keep it.
What is a pirarucu?
The pirarucu is a tropical fish in the family Arapaimaidae of the order Arowana. The pirarucu originates from the Amazon River in Brazil, located in South America. The pirarucu is the only species of the genus Arapaima still in existence. The pirarucu is also famous as a "living fossil" because it has remained virtually unchanged for about 100 million years.Pirarucu are sometimes displayed in aquariums because of their ecology and history. The pirarucu is characterized by its long, flat face and flat tail fins. Pirarucu are able to take in oxygen from the air by using their floating pouches as lungs. Depending on the aquarium or specialty store, the pirarucu may be described by other names such as "pirarucu," "arapaima," or "paiche. This website uses the commonly used (and recognized) "pirarucu".
熱帯魚を、専門店に見に行くとたくさんの種類に驚きます。値段も違えば、体の大きさや見た目も大きく違うので何を基準に選べばいいのか迷います。今回はそんな熱帯魚の種類について詳しく説明していきたいと思います。 熱帯魚の分類 カ[…]
The spotted gar is a tropical fish of the family Geridae, genus Lepisosteus, native to the Mississippi River in the United States of America, located in North America, and has an elongated body and elongated jaws with protruding mouthparts. In this article, I would like to explain in detail the characteristics of the spotted gar and how to keep it [...].
The alligator gar is a tropical fish of the gar family, Atractosteus, and is native to the Mississippi River in the United States of America, located in North America. In this article, we will discuss the characteristics of the alligator gar and how to keep it [...].
How to keep pirarucu
The lifespan of a pirarucu is about 15 to 20 years. Its body size is approximately 200 to 300 cm. However, both lifespan and body size vary depending on the environment in which they are kept and the food they are fed. The pirarucu prefers slightly acidic to neutral water, and especially prefers a pH of 5.5 to 7.0. Pirarucu are classified as a tropical fish, so if you keep them in Japan, you will need a heater in winter.
水槽を立ち上げたばかりの頃、ヒーターのコーナーに立ってみると種類の多さに戸惑った経験はありませんか？「オートヒーター」「サーモスタット一体型」「観賞魚用クーラー」――棚を眺めるほど、どれを選べばいいのか分からなくなってしまうものです。 […]
Points to keep in mind when mixing swimmers
Regarding mixed swimming, first of all, pirarucu have a docile disposition. However, since the pirarucu itself grows to a large size, it is difficult to mix them with small to medium sized fish because they will be preyed upon. In addition, large-sized fish may cause stress when mixed swimming due to the aquarium environment, so basically, we recommend that pirarucu be mixed with other pirarucu species.
The pleco is a tropical fish of the catfish order Loricariidae, family Pecoltia, native to the Amazon and Orinoco river basins in South America. It has hard, rough scales like armor and a sucker-like mouth that can stick to rocks and walls. In this article, we will discuss the characteristics of the pleco and its keeping [...].
Points about spawning
Many people who keep pirarucu want to breed them. However, breeding pirarucu is not very difficult, but there are only a few breeding cases, so the difficulty level is higher in that aspect when breeding them.
メダカを飼っていると、ある日気づくと小さな卵がお腹にくっついている——そんな場面に出会ったことがある方も多いのではないでしょうか。メダカは比較的繁殖しやすい魚で、適切な環境さえ整えれば、初めての方でも産卵に挑戦することができます。 […]
金魚を飼い続けていると、いつかはきっと「増やしてみたい」と思う日が来ます。泳ぎ回る小さな稚魚の姿を想像するだけで、胸が高鳴りますよね。しかし、金魚の産卵は決して簡単なものではありません。正しい知識なしに挑んでしまうと、せっかく育てたメス[…]
What to look for when keeping a pirarucu
The pirarucu is the largest species of freshwater fish. It is also a very popular species because it has hardly changed its appearance since about 100 million years ago. However, the pirarucu is a very difficult species to keep in the home because of its fast growth rate and the fact that it can grow up to 2~3 meters in length. Therefore, it is very costly and time-consuming to keep them in an aquarium at least 3 meters long and filled with several tons of water.It is also better to have a powerful filtration system. So, in general, they are mostly kept in large facilities such as aquariums. Pirarucu will be a protected species under the Washington Convention, so most of those distributed in Japan are fry born in Japan. Pirarucu have large scales and powerful bodies. If you are interested in pirarucu, we recommend that you visit an aquarium or a specialty store to see them.