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Apteronotus Belokimovy: photos, content and breeding

Dear colleagues. A week passed from the last post and I was finally able to find some time to devote it to writing another article on the blog. In today’s article we will talk with you about one interesting aquarium fish that you can hardly find in aquarium lovers, but for general development, you still need to read about this fish.

The hero of our today’s article is White-Upteronotus.

Solitary specimens of the fish Apteronotus albifins appeared in amateur aquariums in the mid-80s of the last century. For the first time this aquarium fish was propagated in the early 90s in the city of Leningrad.

The offspring were obtained from two producers, of which one individual was brought from Holland, and the second from Germany. In the process of spawning, it was possible to obtain offspring three times, and broodstock were organized.

In nature, Apteronot lives in the upper basin of the Amazon River in the countries of Bolivia, Peru, Brazil and Colombia. The fish prefers ponds with a slow current of water and dark water (peat water). Water parameters in natural habitat are as follows:

  • Stiffness: 2 – 3 degrees;
  • Water temperature: 26 – 29 degrees;
  • Active reaction: 5.8 – 6.5 pH

Apteronotuses are nocturnal, in the daytime they tend to hide in shelter (in the interweaving of coals and coastal holes). Surprisingly, the fish tries to keep a strictly defined area, which protects from various offenders. Uteronotes feed on the larvae of various insects and fish fry.

Sexual maturity at apteronotus occurs at the age of 18 months.

For the successful maintenance of apteronot in the home aquarium, the aquarist will have to create as close as possible to the natural conditions of detention. In the aquarium there should be a large number of various shelters, otherwise there may be clashes between your pets. It is advisable to feed the fish with high-quality and diverse food (pipe maker, bloodworm, mollusks and coretr).

The optimal time for feeding is evening.

Special attention should be paid to the fish before preparing them for spawning. Unfortunately, sexual dimorphism in apteronot is practically not pronounced, and females differ from males only in their more convex abdomen.

To determine the sex of fish, there is one technical method. Uteronotes have a special organ that can generate weak electrical impulses that have a specific frequency.

This organ for fish serves for communication and location. In normal life, the frequency of the impulses emitted by the female and the males is about the same, but the closer to spawning, the frequency of impulses in females increases significantly.

However, this method is available only to experienced aquarists, since in order to capture these electrical signals, you will have to acquire special equipment.

The first successful experience of breeding Apteronotus leptorhynchus was obtained in the seventies by American scientists who studied the electroreception of low-electric fish. When the fish has reached sexual maturity at the age of one and a half years, you can begin to create conditions for stimulation to spawn.

One female and two males are selected for spawning. In nature, the breeding season for apteronots occurs simultaneously with the rainy season.

During this period, the fish have time to postpone caviar several times with a break of 30-35 days.

For breeding apteronot at home, an aquarist should create as close as possible to the natural conditions of detention. To stimulate spawning, it is necessary to gradually lower the water level in the aquarium and increase the water temperature. In general, this procedure will take about a month.

After that, the water level should be gradually increased, pouring distilled water from the “sprinkler plant” into the aquarium.

Variants of technical production of distillate can be different, the main thing is to achieve conditions of heavy rain. Daily “rain plant” should work for 3-4 hours.

Then you need to gradually raise the water level, which will take you several weeks. As a spawning substrate, floating pistus bushes with a well-developed root system can be used.

You can also use an artificial substrate in the form of threads that are attached to the floats.

The signal for early spawning is the frequent walking of the male with the female to the chosen shelter. To save the eggs and prevent them from eating by their parents, you need to use special nets or thin plastic tubes. An additional stimulation to breeding is an increase in aeration with the flow of water through the aquarium.

This can be achieved by installing cans and pumps in a corner.

Spawning occurs in a stream of water before dawn. Eggs are rather large. During spawning, the female can sweep up to 500 eggs.

At the end of spawning, the parents are removed from the aquarium and the water level is reduced to 15 centimeters. Light also needs to be reduced. To save the eggs, you need to add methylene blue and antibiotics to the aquarium.

If the temperature of the water in the aquarium is kept at around 28 degrees, the incubation period lasts about two days. During this time, you need to constantly monitor the development of caviar and regularly remove dead caviar.

When the larvae appear from the eggs, at first they will hide in plastic tubes, which are placed in the aquarium so that the aquarist can easily observe the development of the young. After three days, the larvae begin to feed actively. Larvae should be given zooplankton as feed.

The amount of feed must be decent, as small things are constantly hiding in shelters. If there is a lack of food, all shelters will need to be removed from the aquarium, which will significantly increase the motor activity of the fry.

Just do it with extreme caution, as the larvae are extremely reluctant to leave their shelters.

With a good and balanced diet, as well as with regular water changes, apterot fry will grow very quickly. At the age of 30 days, they grow in length to 5 centimeters and change the color, which becomes the same as that of the parents. At about two months of age, a large number of various shelters are placed in the aquarium in the aquarium, as skirmishes begin to appear during this period.

If the frequency of skirmishes is high, the fry can bite off each other’s tail and pectoral fins.

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