Blue tetra fish: Care, Tank Mates, Breeding & More

What to keep in mind about the blue tetra

The blue tetra fish has interesting peculiarities that make it a favorite of many people, in addition to not requiring special attention or care since it is strong and can survive on its own. Its adipose fin is located between the cauda fin and the dorsal, its teeth are sharp so it can easily digest its food, and it belongs to the family of phaacids, so it is not so good swimmer.

blue tetra
Scientific NameBoehlkea fredcochui
Other NamesBlue King Tetra, cochu’s blue tetra
OriginsSouth America
Aquarium LevelAll Levels
Best kept asGroups 6+
Lifespan2 – 3 years
Maximum Sizeup to 5.5 cm

General habitat

In its natural habitat this species can grow up to 4 centimeters in length, in addition there is no difference between females and males. Regardless of the sex they all have, they have a flattened body, their coloration is intense blue and has a small fattening at the height of the abdomen like the rest tetras. Above it has a dark stripe that goes from the caudal fin and ends in the stomach.

Blue tetra fish are native to South America and Peru so they can be found in basins and rivers such as the Negro or Orinoco. They are used to living in water currents between 22 and 27 degrees Celsius, although sometimes they can adapt in a wide range of 5 to 8 but it is advisable to keep them at a pH of 6 to 7.5 along with a GH less than 15 ° d.

Without a doubt we are talking about one of the best known species within the so-called congo tetras or African tetras. They have the peculiarity of being shoals so they are peaceful and social that can coexist with specimens between 6 to 8 to avoid feeling stressed. It should be taken into account that the genus is vulnerable to poor quality water or nitrites.

Overview of the blue tetra

The blue tetra fish can be compatible with another species of small caracid school, the advantage is that they can relate perfectly to cichlids such as the discus fish. They can also easily adapt to other invertebrate animals such as prawns or snails. They do not bother at all so it is recommended for beginners of this hobby.

Aquariums for blue tetra fish

To ensure that the development of tetra blue fish is adequate it is important to have a good aquarium. This means that you have a good water filter, with vegetable planting to sift the light and with excellent oxygenation so that they feel happy inside their new home. Due to their physical features, they are accustomed to living in crystallized and colored environments, so they do not resist sudden changes in water.

Fish tanks for blue tetra fish

By having a calm behavior the blue tetra fish can coexist with specimens of up to 6 in the same aquarium, so you must make sure that it is large and better if it is a round perish since it has no corners with which the species can be injured. In addition, the water must have a moderate temperature to prevent them from getting sick and the currents must be somewhat slow since they are not so good swimmers.

The aquarium or fish tank you choose should have a minimum of 60 liters to prevent the fish from feeling stressed. You can plant natural vegetation on the sides and bottom to leave the area in front free, in this way the blue tetra fish can swim slightly whenever you like. As for the lighting, it should not be very powerful because when there is too much light it can damage the view.

What you can do so that it does not filter so much clarity in the aquarium is to use a substrate and gravel of dark hue so that they can rest and feel safe. It is recommended that the water temperature does not exceed 27 degrees Celsius because of its thin body. With this basic care your species will always stay away from diseases and its color will remain robust.

Aquarium elements

The advantage of the blue tetra fish is that it adapts to a high water range, so it is necessary to have it at a pH of 6-7’5 along with a hardness of 15 dGH maximum. As for the elements, as we mentioned before, it must have a lot of planting on the sides leaving the center free to speed up their swimming and so that they can not collide with anything.

Types of blue tetra fish

The blue tetrafish is also known by the name of Boehlkea fredcochui, a species that has currently been highly demanded for its physical peculiarities. Being a kind of calm and social behavior is suitable to live with other similar genres since it does not bother or much less likes to have confrontations. It is ideal for the decoration of community aquariums.

Types of blue tetra fish

Now you can buy specimens of the same family but of different characteristics and color, this is due to the combination that has occurred between tetra fish. The only coincidence is that everyone is used to living in small groups so as not to get stressed and not to feel lonely all the time. Among the most common are the following:

Fish petra bleeding fins: As the name implies, this species has completely dyed fins deep red as if it were always bleeding. Its body is thin and has a strong greenish hue, sometimes it can have a transparent or white color. They can live between 5 to 8 years depending on the care given.

Black tetra or monjita fish: it is a beautiful species thanks to its physical appearance and striking color. It is characterized by having on the body two stripes of black color, has fins covered with black hue and has a large anal fin for an efficient swim. Being an omnivorous animal, it easily adapts to any supply.

Red tetra fish: it is native to the caracid family, in a community aquarium it can measure between four to five centimeters in length. However, its head is usually larger than its body and its upper jaw is not as developed as the lower jaw.

Care for your species

Because they have a small appearance, they require a large area so that they can swim to their liking. The blue tetra fish like its other family are accustomed to living in wooded areas so it would be a good ideato see the aquarium of artificial or natural plants,but first you should advise yourself that these are not pointed or heavy.

Offspring of the blue tetra fish

For the reproduction of tetra blue fish to be successful, they must be given the necessary conditions to survive during their first days. Being descended from the caracid family they are very easy to breed, however before laying a large aquarium is required that allows safe development and swimming. Otherwise the couple may feel stressed to the point of not wanting to fertilize eggs.

Reproduction of the blue tetra

It is important that the aquarium has a lot of floating vegetation preferably natural, in some cases the male is in charge of looking for his nest so that when the time comes for reproduction he can place the eggs on it. In this way maraca territory and prevents other species from eating them so you must take the greatest possible care.

Courtship begins when the male chases the female almost all the time until he stalks her, then kicks her in the belly to achieve fertilization. After the act the female performs the laying in the previously prepared nest. The most convenient thing in this case is to remove them and place them in another aquarium of very soft and relatively acidic water that does not exceed a ph of 6.7 so that they are born healthy.

Now it only remains to wait between 35 to 48 hours for the eggs of the blue tetra fish to hatch, although the wait may vary depending on the temperature of the water. In the first three days of their birth the little fish feed on their life sac to survive because they are so small they do not digest food correctly. On the fourth or fifth day they begin to swim freely so they can be introduced with the other fish.

Tips for breeding

After releasing their swim it is necessary to provide them with live food as is done with the blue tetra fish, to start you can give them a small portion of nauplius so that their defesas are strengthened and so that their immune system develops correctly. It is convenient to incorporate a good amount of java moss so that the brood has an appetite and grows faster.

Feeding the blue tetra fish

The blue tetra fish is a beautiful and very striking species due to its greenish silver hue on the back and an electric blue hue that goes from the caudal areas to the gill area so it always attracts attention. The abdomen exhibits a white and yellowish coloration. In order for them to always remain robust, it is important not only to give them the necessary care to the water but also to feed them correctly for further development.

What does the blue tetra fish eat?

Tetra blue fish have the peculiarity of being omnivores as are the other caracids, this advantage allows them to give them any type of food without any inconvenience. Although they accept food in granule and flakes, they sometimes prefer frozen live foods such as artemia, crustaceans, shrimp, red mosquito larvae, stews, small worms, among others.

They can also be given a portion of fish porridge to vary the diet as they can get bored of the routine. Within a community aquarium this species accepts practically all kinds of commercial food for omnivorous families so they never leave food remains in the water. It is recommended to give them one or two times the food a day so that their little body can digest it well.

When supplies are provided in greater quantity, the only thing that is achieved is to pack the fish, which can cause poor digestion and can even get sick. Therefore you have to be careful at lunchtime, it is also necessary to throw them at a small distance to prevent others from gaining advantage and this one is left without feeding.

How to feed them?

In order for the blue tetra fish to stay healthy and prevent it from getting sick from the food supplied, the ideal is to give it its food in the morning and at night since at noon it keeps swimming or playing with the other fish. So that the products do not capture any harmful bacteria, it is necessary to verify that the tank is not dirty or moldy since at the time of feeding the fish can seriously contaminate.

Care of blue tetra fish

Tetra blue fish are native to the caracid family so they have a fusiform body, has a fairly small adipose fin between the anal and causal fin that contributes to stabilization while swimming, and the mouth is oriented towards the top. Their behavior is peaceful so they can coexist with other genders of similar characteristics so that they feel protected and happy.

Basic care

Sometimes these fish are very restless so it is required to keep them in a large aquarium with a lot of oxygenation. Otherwise they can get stressed which affects their immune system, they will also be chasing each other most of the day but they will not do any harm. To avoid this situation or so that they are not shy it is recommended to place at least 6 copies.

Because the blue tetra fish is a school of fish does not require special attention or care, the only thing that is required is that its diet is correct for its correct development. On the other hand it is important to verify that it shares with fish of similar habitat customs so that there are no confrontations, but if you want it to be with slow swimming species it is important to have a fairly large aquarium.

So that they have an always robust coloration it is important to clean the aquarium at least once a week to avoid the creation of pests or bacteria. It is best to have a good water filter so that it remains crystallized since this is how these fish like to live. It is recommended for beginners who start with this hobby.

How to care for blue tetra fish

Depending on the care given to the blue tetra fish so will be its years of life, usually last between 5 to 6 years of life. For this reason it is important that from a young age they are fed with meals rich in proteins, minerals and vitamins to strengthen their defenses. With this precise care your species will remain safe and sound from any disease and you will not fail in the attempt.