rummy nose tetra

Rummy nose tetra

The rivers of the tropical part of South America gave aquarists a large number of ornamental fish species. One of them is the rummy nose tetra or red-nose tetra. This fish cannot boast of bright body color, but a tail with a black and white stripe and a ruby ​​spot on its head gives it a special charm. The features of the contents of this tetra will be discussed in our article.

Scientific nameHemigrammus rhodostomus
Namerummy nose tetra
Common namesrummy nose tetra, red-nose tetra, firehead tetra, rhodostomus
Natural range
found in the rivers Rio Negro, Colombia, Orinoco, and numerous tributaries of the Amazon
Sizeno more than 5 cm
Tank size60 L or 13 gallons for 6-8 flock
Life span5 years
24-28 ° C or 75-82°F
pH 5.0-7.0
Colorsilvery, with a greenish tint / red spot on head
Foodhigh quality dry food
Breedingcan be complicated / separate aquarium
6 months
Eggseggs hatch in 3 days / special food for fry

General information

Rummy nose tetra (Hemigrammus rhodostomus), is a small fish from the Characidae family, which is often a resident of aquascapes. The creators of underwater landscapes opt for this tetra because of the specific color. The body of the fish is gray, the tail is striped, and there is a bright red spot on the head. On the one hand, a flock of rhodostomus looks very interesting, on the other – it does not distract attention from the contemplation of the herbalist. At the same time, fish will not harm living plants.

Rummy nose tetras are characterized by a livable character, so they will become good neighbors for many other species.


The rummy nose tetra has a slender, elongated body. The size of an adult does not exceed 5 cm. The body is silvery, with a greenish tint. The fins are transparent. Tail with black and white stripes. The main distinguishing feature is a red spot on the head, for which the fish got its name.

The intensity of the color directly depends on the conditions of detention. If the fish is stressed, the spot turns pale red. In comfortable conditions, on the contrary, the head is painted in ruby ​​red. So the color change is a good indicator of the condition of the aquarium.

Rummy-nose Tetra Planted Aquarium


The rhodostomus was first described in 1886. The birthplace of the rummy nose tetra is South America. Flocks of these fish can be found in the rivers Rio Negro, ColombiaOrinoco, and numerous tributaries of the Amazon. The water in these reservoirs is acidic and soft, has a brownish tint, due to the high content of tannins – decay products of organics (fallen leaves, tree roots, etc.).

Care and maintenance

Rhodostomus are schooling fish, therefore it is recommended to contain 6-8 individuals. For such a number of fish, a capacity of 60 liters is suitable. The best design option is a biotope. Coarse river sand is used as soil, on which several natural snags are placed and live plants are planted. It is undesirable to put the aquarium in noisy and passable places because the fish are very shy.

Rummy nose tetras are very sensitive to the content of dangerous nitrogenous compounds (ammonia, nitrites) in the water, therefore it is important to ensure effective filtration and aeration in the aquarium. A change in the color of the fish indicates a deviation from the norm. Lighting is recommended subdued, because, in nature, fish live under the dense crowns of tropical trees.

Once a week in an aquarium with rhodostomus, it is necessary to change the water 15-20%. Fish prefer soft (2-15 dH) slightly acidic water (pH = 5.0-7.0). Comfortable temperature of 24-28 ° C. To create the natural effect of “black water”, you can use the drug Tetra ToruMin.

Rummy nose tetras get along well with any living plants and look excellent on their background.

After buying rhodostomus, it is very important to correctly transfer them to the aquarium, the fish are very sensitive to changes in water parameters. With a sharp transfer or a very large change of water, the fish can even lie sideways to the bottom and it may seem that they died. But after a while, the tetras begin to swim again.

The average life expectancy in the aquarium is 5 years.


Very peaceful appearance. It goes well with any peaceful flocking species: neon, Black tetra, other tetras, zebrafish. Able to live with calm South American cichlids: Angelfish, discus. It can also be kept with shrimp, fish do not show gastronomic interest in them.

Categorically not recommended to plant to large and aggressive cichlids.

rummy nose tetra

Rhodostomus feeding

High-quality dry food is perfect for feeding rhodostomus, the main thing is that its size corresponds to the small mouth of the tetra:

  • TetraMin Flakes are a great base food for all kinds of fish. Seven types of cereal from more than 40 components will appeal to any fish. The food contains prebiotics to improve digestion. It is fully balanced and maximally absorbed by fish, which reduces waste and maintains the purity of water in the aquarium.
  • Rhodostomus are very active fish; it will not be out of place to provide them with additional energy. For this, fodder in the form of chips is perfect – TetraPro Energy. It is made using gentle low-temperature technology, which allows you to save even more nutrients and vitamins, and also contains energy concentrate for moving fish.
  • Especially for small fish, which include red-nosed tetras, Tetra has launched the Tetra Micro Food line of micro-feeds. Rhodostomuses prefer to eat in the middle and lower parts of the aquarium, so it is better to opt for Tetra Micro Sticks – floating sticks measuring 1.5-2.5 mm in water soften and slowly sink to the bottom.
  • We recommend that you occasionally offer Tetra FunTips Tablets. Just stick the tablet on the glass and watch a flock of Rhodostomus scurries around it, trying to tear off a tidbit.
    Like other small fish, rummy nose tetra has a very small stomach, so you can not throw a large amount of food into the aquarium to prevent overeating.


Breeding rummy nose tetra at home is a serious task, it requires not only experience, but also a certain amount of luck. Difficulties begin already at the stage of selection of manufacturers. Sexual dimorphism in fish is not expressed, therefore, a male can be reliably distinguished from a female only immediately before spawning – in females, the abdomen is very rounded off from the eggs. It is very important that manufacturers are grown in soft water. The prolonged keeping of fish in water with increased hardness makes them infertile.

For spawning, an aquarium of 20 liters or more is needed. Young rummy nose tetra is very sensitive to water quality, so it is important to ensure perfect cleanliness. Mandatory presence of a compressor, filter, and heater. At the bottom, you need to put bunches of Javanese moss.

A week before the alleged spawning, producers are planted in a spawning ground and plentifully fed with high-protein feed. The light should be dim.

To stimulate spawning, the water temperature is gradually increased to 30-32 ° C. Hardness should not exceed 5 degrees. It is recommended to add air conditioning to create the effect of “black water” in order to create conditions as close as possible to natural.

Tracking spawning is not easy, the males chase the females and beat caviar from them. After the end of the process, the producers are precipitated, and antifungal drugs are added to the water, since caviar is often affected by infections. The entire period of incubation of the eggs should be in the twilight, as bright lighting is destructive for them. Larvae hatch on the third or fourth day and feed on the yolk sac for another 24 hours. Starter food for juveniles – dry food for fry Tetramin Baby.

After hatching fry, breeders have another problem. They grow very slowly, it is necessary to feed fish with micro-feed up to the age of 6 months. In this case, the young develop the longer, the lower the temperature is.