Fish are fantastic animals since their beauty is characterized by their spectacular colours and shapes, making these creatures an ideal pet. 

If you are one of those people who are hypnotized by such magnitude of majesty when they see a fish tank, without a doubt, you have to know the tetra fish.

Today we will talk about a characteristic fish of tropical aquariums, the tetra fish, whose beauty can flood even the simplest aquatic landscaping. 

If you want to have an exceptional pet and make your days happy as soon as you see it, the tetra fish is yours. Here you will find all the information to know more about this incredible animal native to Central and South America.

Meet the Tetra fish

The tetra fish belongs to the Characidae family and is a freshwater animal with many subspecies because they are present in a vast geographical area, allowing it to adapt to different climates and very diverse environments. 

Although today we can find specimens of the tetra fish in any specialized aquarium store, the truth is that this animal is originally from the Amazon region and is also very present in the Panama Basin, up to the Río de la Plata.

This freshwater animal is characteristic of its adipose fin between the caudal and the dorsal fin. In addition, these little ones are also characterized by their scales, always having metallic tones, but these colours rarely occupy the entire body. Instead, they are grouped in stripes, points, or spots. 

Tetra fish: curiosities and characteristics

They tend to swim in groups, making for a unique landscape harmony, unlike other fish that do not swim in schools.

In most cases, they are small fish since their size does not reach 4 centimetres. The female is usually more significant than the male tetra fish, and, in addition, the females have a more rounded belly than the male. 

Another representative factor of these fish is that they are free-spawning oviparous. That is, they do not take care of the young and, in many cases, they gobble them up. They can lay more than 500 eggs, the fry hatching at 36 hours.

These animals, in addition, are great swimmers and are very active. Their behaviour varies greatly depending on the subspecies to which they belong, becoming very peaceful, even quite aggressive, as is the case with piranhas, also belonging to this family.

Tetra Fish Care

As for its diet, this pet is omnivorous. It eats both live animals and vegetables. They accept flake food very well but as long as it is good quality. 

They also need live animals, for example, mosquito larvae, water fleas, or you can grate some raw frozen meat with the help of a vegetable grater.

The most common disease that this species can develop is ‘white dots.’ In addition, these fish are susceptible to medication. 

Therefore, if we want these little ones to grow healthy and strong, we must avoid sudden temperature changes, especially after meals. Although these fish are favourites of tourists who enjoy more tropical landscapes, it is best to live in their natural habitat.

The most important thing if you want to have a fish tank with this animal is to have the water in good condition, that is, to have a suitable temperature for the members of the aquarium and the water is always clean. 

To clean the fish tank, use a good filter and sometimes clean it manually, without soap or chemicals. Also, it is essential to remember that not all the decorations of the fish tanks are suitable for this animal since, on many occasions, the paint comes off and can be fatal for our pet.

As for the type of water they need to live, soft water is required, is slightly acidic, and has a temperature of about 20º to 25ºC. A common mistake is that they require a higher temperature, but no, tetras always have to be in waters at a suitable temperature.

It is vital not to have the fish crowded; your aquarium doesn’t have to be overflowing with different species, as this will bring many diseases to your pets. 

Therefore, the amount of fish you want to include in your aquarium has to be directly linked to its dimensions. For example, six tetra fish for every 70 litres of water, you can put up to three different species of tetra.

Also, remember to have a dim light that is not garish. You can place plants and vegetation so that these little ones feel more secure, such as, for example, Sagittarius, Amazonian swords, or Vallisneria. 

The dark rocks and caves that you can add to your aquarium will also create a habitat commensurate with this species.