Polypterus endoliquery is a representative species of the mandibular system! How to keep and tips for mixed swimming

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What kind of fish is polypterus endoliquery?

Breeding Polypterus endoliquery

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Endricelli is one of the most popular species of Polypterus, an ancient fish that has been on this earth for 400 million years. Because many people like this fish, the distribution volume is relatively large and you can often see it at tropical fish stores.


Grows to a length of 30-70 cm. They have pectoral fins that are muscular like arms, and are strong swimmers, so they need a large tank. Although endricelli are fish, they can breathe with lungs and can survive in low-oxygen environments where other fish would die in the wild. Body color and patterns also vary from individual to individual. Gills extend outside the body during the juvenile stage, but disappear as the fish grows.


The endricelli is found in the Nile, Lake Chad, Niger, Volta, Bandama, Comoe and Oueme rivers of Guinea, Nigeria, Niger and Ghana. They are caught locally for food.

Polypterus endoliquery is a representative species of the mandibular system


Endricelli has a long lifespan of more than 10 years, and there is a record that some of them have been bred for more than 30 years. Therefore, if you are going to keep them, we recommend that you think about breeding them with a good image of whether you can stay with them until they can live out their lifespans.

Distribution volume and market price

Endricelli is very popular, so it has a large distribution volume and is cultivated, so you can purchase it at a low price. However, the prices range from pin to pin, and there are expensive individuals that cost around 1,000 yen to tens of thousands of yen. If you go around a tropical fish shop that sells large fish, you can almost meet them, so there is a lot of distribution.

Breeding method of polypterus endoliquery

Endricelles are hardy, easy to care for, and long-lived.

Water temperature/water quality

Endricelli is resistant to changes in water quality, and is weakly acidic to neutral, and the water temperature should be controlled between 25 and 28 degrees. It is said that they can survive up to 35°C. However, it is recommended that you do not leave it unattended just because it is durable, and that you measure the water quality from time to time and change the water regularly.

Tank size/filter

When they are small, they can be kept in a 60 cm tank, but as they grow, the size of the tank will increase. If you have a tank with a maximum of 120 cm, you can breed it without problems. There are top filters, external filters, etc., but we recommend the top filter, which is easy to clean, and the external filter, which has high filtering capacity, considering the time and effort required for cleaning and the filtering capacity. However, the upper filter may pop out and cause an accident, so it is necessary to devise a way to prevent it from popping out.

Substrate material

Oiso sand and garnet sand are often used. However, if the size of the tank is large, the amount of sand in the bottom will also increase, making the entire tank heavy and making it difficult to install and manage, so it is often not used. In addition, since the color and pattern will be similar to the color of the bottom sand, it is necessary to consider that if raised in black sand, the color will be dark, and if raised in white sand, the body color will change to bright.

Food for polypterus endoliquery

In the wild, endricellie feed on small fish, insects and crustaceans. In general, even in captivity, medaka and goldfish are often given alive. Artificial food can be stored for a long time and is easy to give, but it is often difficult to eat at first. It is necessary to get used to it, and it is often managed by fasting for several days, and then if you give it, it will eat.


Mixed swimming of polypterus endoliquery

Features of polypterus endoliquery

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Endricelles have a gentle personality and can be mixed with a variety of fish. However, you should also be careful about size.

Mixed swimming of the same species

Even if Polypterus swims together, they rarely fight. However, if the body sizes are too different, they may fight, so you can prevent fights by mixing polypterus of the same size.

Swimming with other species

Arowana is often mixed. However, there are times when they are bullied by arowanas, so if you want to swim with them, please make a place in the layout where they can hide. Another fish that often mixes with polypterus is gerbike. Basically, you can swim together without fighting, but if there is too much difference in body size, you may get into a fight, so it is recommended that there is not much difference in body size.

Breeding of polypterus endorickery

If they get too fat during the growth process, they will lose their reproductive ability, so divide the food into several times and give it little by little, and be careful not to get too fat. Autumn is the best season for breeding. Spawning occurs at intervals of 3-4 days over several months. Also, the water temperature should be kept around 28 degrees. Since eggs are laid on aquatic plants, prepare aquatic plants such as willow moss.

Diseases of polypterus endoliquery

Polypterus is less likely to suffer from diseases such as white spot, which are common to tropical fish, and it is doing well even in environments where goldfish fed with live food suffer from white spot. However, it is susceptible to bacterial diseases, such as columnaris and aeromonas, and it is easy to get sick, especially when setting up a new tank, lack of filtration capacity due to the size of the tank, neglecting filters and water changes, so be careful.

A fun aquarium life with ancient fish

Challenge to breed Polypterus endoliquery

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When you hear about ancient fish, you get the impression that it would be difficult to raise them, but in reality, this is not the case, and it is a species that can be challenged to breed. Also, since they are long-lived, I think that attachment will increase even more if you go out with them for a long time. Please take this opportunity to breed them.

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Polypterus endoliquery is cool