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Tetra Congo (Phenacogrammus interruptus) – content, breeding

Congo tetra (Phenacogrammus interruptus) Boulenger, 1899

Congo tetra – this is amazingly beautiful, active, peaceful, gregarious aquarium fish, also called rainbow or blue Congo. This fish is representative of the species of the African Kharatsinovykh, which in the distant 1899 was described by the biologist Boulanger.

Congo tetra common in Africa. Wild populations are endemic to a portion of the rivers of the Congo Basin in the Democratic Republic of the Congo.

These fish keep flocks in the river water. At the same time, in nature, they consume mainly representatives of crustaceans, insects, and various types of zoo and phytoplankton.

Most of the fish available in trade are bred for sale in Asia and in Eastern Europe.


Congo tetra male

The body of the fish is elongated and flat on the sides. Fins lush fans scattered on the sides of the body during movement.

Males are also distinguished by long processes, similar to the veil, which are located on the tail, as well as the dorsal and anal fins. In addition, the male has a three-bladed tail, in which the middle blade protrudes slightly.


Congo tetra pair

Tetra Congo in the aquarium shows a beautiful color that shimmers beautifully in the water. It is represented by blue, red-orange and golden-yellow shades.

Fins, on the other hand, have more muffled tones, these are translucent, gray-purple hues.


Congo tetra female

The male is larger and much more brightly colored.


Congo tetra albino form

Congo belongs to the fish of medium size. Adults reach a size of 8 cm in length when it comes to males.

Females are usually slightly smaller – about 6 centimeters.

Arrangement and parameters of the aquarium:

Congo tetra peaceful, schooling fish, it is desirable to keep in aquariums more, because they need a lot of space for swimming. In addition, it is important that the lighting in the aquarium is muted. These fish are rather timid and secretive, especially if there are some other aggressive species in the aquarium.

They may be frightened by loud sounds and sudden movements nearby.

The size of the aquarium is 120x30x30 cm for adult fish, although juveniles may be kept in small tanks.

If Tetra Congo is contained in a small amount, about six individuals, then an aquarium from 100 liters will suit them. The fish will be less fearful if dark soil and dimmed light is used in the aquarium.

Such light can be created by adding plants to the aquarium that will float on the surface of the water.

Ideally, an aquarium with an African biotope, with snags and branches, floating vegetation and Anubiase. They will show you their best colors in any well-equipped aquarium with plenty of swimming space.

Water should be in the acidic side, neutral or soft, with good circulation.

Regular replacement from fifteen to twenty percent of water per week.

Congo tetra (Phenacogrammus interruptus) It is recommended for most common aquariums, however, it is worth bearing in mind:

If you keep the fish in a group of less than six individuals, they will become quite shy. It is also important that they are surrounded by fish with similar sizes. As excellent neighbors for the Congo will be iris, corridors and various peaceful cichlids.

You should not settle them with aggressive fish and those that are able to bite the fins – the spectacular fins of the males will be simply destroyed. Small fish in the general aquarium with Congo tetras will not feel comfortable due to their larger size and more active behavior.

Congo tetra must be kept in water, the temperature of which varies between 23-28 degrees Celsius. Arriving from Africa, they remained lovers of warm water.

As for acidity, it should not exceed the figures in (pH) 6.0-7.5. Water hardness can vary between (dH) 3-18.

Tetra Congo is omnivorous. A relatively unassuming species and will take most types of feed, but live and frozen feed should make up a large proportion of the diet. However, in their diet must be included and herbal ingredients.

Without them, the fish can damage the delicate plants in the aquarium.

Not simple, but possible. Congo tetra is a breathtaking species.

Producers select active and most brightly colored males and larger females, who have been heavily fed previously using live and frozen feed.

They should be placed in a small aquarium with a net at the bottom. Caviar passes through the mesh cells, which minimizes the risk of parental eating. To cause spawning, the lighting must be muted and some plants added, as in nature spawning occurs among the vegetation.

Water should be below neutral pH and soft. After chasing by the female, spawning occurs.

Water parameters in the spawning aquarium: 25-28 ° C; dH 2-3 °; pH 6.0-6.5.

Up to 300 large eggs can be swept by one female during spawning, although 100-200 eggs are the more common number.

During the first 24-48 hours of incubation, unfertilized and whitened eggs should be removed with a long pipette. The larvae hatch in about 6 days, when the yolk sacs swim and disappear (about 24 hours), the ciliate should be offered / added, and then after 2-3 days the nauplia of artemia or other micro food.

You can spawn a group of fish at once. At the same time, it is important that the spawning aquarium is more spacious.

These fish are capable of breeding when they reach the age of about 10 months.

Usually life expectancy Congo tetra (Phenacogrammus interruptus) is about five years old.

Tetra Congo is very sensitive to water quality and if the good quality is not maintained the development of the fins of the males can be disturbed and the fish will lose color. They are also rather shy fish, especially if they are not kept in a flock, recommended for keeping 6 or more individuals.

This species most often goes on sale in a rather nondescript, gray color. However, as soon as they settled in the aquarium and began to mature, they began to show impressive color.

The large school of Congo tetras is particularly spectacular, especially in natural light.

Not suitable for sharing with shrimp.

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