10-12-2019, 20:22
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Systomus asoka

Systomus asoka naturally inhabit fast, relatively deep streams in Sri Lanka, South Asia. Young fish prefer to stay in coastal areas in shoals, at a depth of 5-25 cm, where they swim in flocks of 30-100 individuals. Adults keep to a depth of 1-2 m. This fish was first described in 1989 and is now on the verge of extinction.

Systomus asoka has an elongated body decorated with yellowish dots at the base of the scales. There is a large dark spot at the root of the tail plumage. The head is large. The fins are orange and the fin rays are red. Sex differences are not pronounced. The maximum size of fish is 25 cm, although in the aquarium, their size is usually less than 12 cm.

Systomus asoka are excellent swimmers. Fish are brisk and require large living space. Keep these fish should be a group of 5-6. Given the relatively large size of fish aquarium for their content should have a volume of 500 liters. possible content in the general aquarium with other peace-loving fish. It is desirable to choose neighbours active fish that are in nature in similar conditions.

The design of the aquarium should try to simulate the bottom of the mountain river with large boulders, stones and snags.

Water parameters: temperature 24-28° C, hardness dH 1-18°, pH 6,0-7,0. Pisces can not tolerate water with a high concentration of nitrates, so the presence of effective filtration is necessary. Create a water current in the aquarium, e.g. with an electric pump or by draining the water filter along one of the long aquarium walls. Strong aeration and ¼ weekly aquarium water change with fresh water is also required.

They will gladly eat various dry foodstuffs, however, live or frozen food should be their primary food source. A varied menu is especially important during the spawning period. Feed the fish once or twice a day.


Under suitable conditions in the aquarium, barbs sedge breed. Spawning usually occurs in the morning hours. Spawning is stimulated by adding 1/3 of distilled water to the aquarium. In order to prevent spawners from eating their eggs, a separator mesh should be placed at the bottom.

Systomus asoka

During the spawning process, the female will chaotically hatch eggs all over the aquarium. Once spawning is complete, the producers should be set aside. After a few days, the larvae hatch out and feed on their yolk sacs for the first 3-4 days of their lives. After this, the fry begin to swim and feed. At this time they begin to be fed nauplii artemia.

The lifespan of an Systomus asoka in an aquarium is about 5-8 years.

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