Rose tetra / jewel tetra

The rose tetra or also Schmucksalmler has its natural origin in the waters of northern South America. In this country it is primarily popular as an ornamental fish. The following article contains interesting information about rose tetras. It refers to the ideal keeping conditions in the aquarium as well as to the external characteristics of the fish. In addition, advice is given on food, water values and sexual differences.

What are the characteristics of rose tetras?

The rose tetra belongs to the group of true characins as well as freshwater fishes. It prefers to live in groups with other members of its species, which means that rose tetras can also be found in their natural environment.

The appearance of rose tetras:

Rosensalmler
© Aquakeeper14, Male Rosy Tetra, CC BY-SA 3.0

On average, rose tetras can grow up to 4 centimetres in size. The flat physiognomy is particularly striking in this breed of fish. In addition, distinctive eyes are a characteristic feature of the Rose Tetr.

The animals have a pastel pink colour which shimmers neon-like and transparent when light falls on it. Darker colour gradients can be seen on the dorsal fins. In addition, rose tetras have adipose fins. They are located in the middle of the caudal and dorsal fins.

  • Average size of adult rose tetras: 3.5 to 4 cm
  • Characteristics typical of the species: On the sides from the dorsal fin flat sloping, wide eyes, angular body with prominent elevation on the back
  • Pastel coloured scales, reddish brown to black shades on the fins
  • Pointed fin shape, in addition rose tetras have a fat fin
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Housing conditions:

In addition to decalcified, acidic water, there should also be a current in the aquarium. There are mechanical devices for this. They imitate the natural water flow. The aquarium should have a capacity of 60 litres and more.

Since this tetra breed is grouped together in groups, their behaviour should be taken into account when purchasing. A school of ten fish represents the minimum number.

Rose tetras behave very socially in groups or with other breeds. It is therefore no problem to keep them in an aquarium with other fish. Nevertheless, the tetras are considered to be spawn-robbing. Fertilised eggs should therefore be kept separately until fish have hatched from them.

With good care the characins can reach an age of 4 years.

  • Low lime water with a low pH value
  • Stable flow
  • Size of the aquarium: At least 60 litres
  • Keep no less than ten fish in the aquarium, smaller groups would no longer be appropriate for the species
  • Rose tetra = In the aquarium basically socially minded, at the same time spawn-robbing
  • During the breeding season the fish spawn is placed in a separate tank
  • Maximum age of the breed is 4 years

Gender differences:

Compared to female fish, male rose tetras are characterised by larger fins on the anus and back. There are no significant differences in body length.

Water values for rose tetra:

A constant water temperature of 22 to 28 degrees Celsius is indicated for rose tetras. In addition, they feel most comfortable in an aquarium with a water hardness level of about 5 to 20 dGH. The pH value should be in a range between 6 and 7.5.

Food and nutrition for rose tetras:

Rose tetras belong to the genus Omnivore, so they eat everything. For example, various insect larvae are suitable as food, but you can also give them dry food.

The ideal aquarium for rose tetras:

Sufficient space for swimming is a necessary condition of life for tetras. The aquarium should be of an appropriate size so that the fish can swim unhindered. It should not be less than 60 centimetres in size.

A dark sand bottom is also recommended. Alternatively, fine gravel can be sprinkled on the bottom of the aquarium. Water plants as well as hiding places in the form of caves serve as a supplement. With them the characins can occupy themselves extensively.

Characteristics of rose-crowned characins:

The breed of the rose tetra is considered a risk group for the real neon disease. It affects the entire condition of an affected fish. With clean water with constant values, healthy food and a gradual introduction to the new environment, the risk of disease remains low.

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