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Keeping and breeding blue Cuban cancer

Blue crayfish likes to be placed in small ponds on the island of Cuba. There the water is usually clean and warm. In Russia, this type of crayfish has been known since 1980.

Cancer has a typical body shape for its representatives. Length of claws is from 6 to 13 centimeters, but there are especially large individuals, whose length reaches 16 cm.

Cuban cancer is distinguished by its bright blue color, although there are other shades.

His pace of life is very slow, usually he slowly moves around the pond. Its claws are always set forward, with small spines along their perimeter. Cuban uses claws to defend against enemies or to attack them.

Mustaches are used for smell and touch. The animal moves with the help of 4 paws, which are located below the cephalothorax. Its abdomen is divided into seven parts, the last lobe of the five-lobed fin departs, which serves as a tail cancer.

He looks like a fan. The abdomen in the inner part has moving pleopods, otherwise they are called “swimming legs”.

The color of the blue cancer depends on the habitat

Coloring Cuban cancer is not quite standard. It is different. It all depends on the region in which the animal lives, on its feeding and on the color of its ancestors.

Cuban is found in different shades, from blue to blue, it can be light blue or bright ultramarine colors. And still there are individuals of yellow, red or brown color.

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It should be borne in mind that a full color is expressed only in the second year of the animal’s life. It is very easy to distinguish a male from a female. In the male specimen, large and powerful claws, as well as the male cancer, possess gonopobie – this is a special organ formed by two frontal pairs of abdominal swimming legs.

It is gonopoby responsible for the process of fertilization. The female does not have such an organ or it is very small in size.

If Cuban gets divorced in an aquarium, then the average duration of its existence is 3 years.

Blue Cuban cancer, like all others like him, regularly shed their protection. Usually young individuals molt more often than old ones.

Blue Cuban cancer sheds, dropping the old shell

The molting process is as follows:

  1. The shell breaks along the back. The defenseless animal is selected from the old skin.
  2. The discarded cover looks the same as if it is a cancer, it has claws and antennae, but the shell is transparent. Discarded cover is eaten by cancer for 3 days.
  3. These three days in the life of the animal are the most dangerous, the new shell has not yet hardened and has not become strong, which means that soft-bodied Cuban becomes easy prey for relatives or large fish. In particular, they like to eat cancerous cyclic and carp fish species.
  4. During the molting period, the Cuban cannot fully feed, because he has nothing to grind food. Cancers know that they are in danger, so they try to spend this hard time in hiding.

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If the cancer lives in the home, then at this time it would be good to plant it in an individual aquarium with good air exchange and a shelter-house.

Blue crayfish in an aquarium coexists well with other fish, it is peaceful and not belligerent. If he has enough feed, he does not touch the algae and fish. Most of the time the animal goes in search of food and digging under stones, leaves of plants and roots.

Cancers can swim. To do this, they repel tail fin, then make them a smooth movement.

Thus, the animal rises to the required height.

Blue Cuban crayfish attack aquarium neighbors in case it lacks feed

If the cancer is frightened, then it is able to quickly run away, moving with sharp jumps. Cuban cancer in an aquarium is territorial.

If two males live nearby, then merciless skirmishes will occur between them, which usually end in a loss of claws. Who is it forbidden to keep a Cuban:

  1. With small fish, for example, neons and guppies.
  2. With veil specimens, because their fluffy tail causes an attack.

Blue cancer can attack sluggish neighbors

  1. With slow or bottom fish. Usually Cuban does not attack them on purpose, he can scratch involuntarily. Cancer is a predator, usually its nature prevails over it, and the animal eats a slow fish.
  2. With large predatory species, for example, tetraodons, arovan or cattle. Such carnivorous fish can eat cancer themselves.
  3. With terrapins.

Blue crayfish in an aquarium coexist with large fish, for example, the carp family. They also peacefully coexist with catfish or Tsikhlidy.

But experts advise to keep Cubans in a separate container with clear warm water.

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For cancer, creating the right environment is a snap. He is unpretentious, loves warm water, shelter and plants. For its full content will need:

  1. Seaweed. They must be such that the crustacean could climb and hang on them. Algae should be with hard leaves. If they are plastic, then the Cuban will eat them. For example, Thai fern is perfect for an animal. Artificial plants can be used.
  2. Water. It must be transparent, purified, oxygenated and meet certain standards. Water temperature should be at least 22 degrees Celsius, hardness from 8 to 13, acidity from 4.9 to 7.7, the content of nitrates is not more than 100 mg per liter. In the aquarium should be unconditionally biofilter and aerator. Replacement of water should be done every week, for this change a quarter of the volume of the aquarium.

There should be enough places in an aquarium where blue cancer can hide.

  1. Priming. Usually used white or yellow. Cuban loves sand or matt white limestone.
  2. The size of the aquarium. Experts advise to use a volume of at least 100 liters. If there are two cancers in one aquarium, then each must have at least 50 liters. For 6 adults you can use a 120-liter aquarium. From above it closes the lid, because the Cuban can climb the plant and run away. The distance of water to the upper edge of the glass should be at least 5 centimeters.
  3. The lamps. Light day of cancer is at least 12 hours in the summer and 10 hours in the winter.
  4. Dressing The aquarium is decorated with stones, snags, houses or pottery tubes. Such shelters will serve not only as decoration, but also as a house for Cubans. Cancer loves when there is a lot of jewelry.

In the aquarium with Cuban cancer preference is given to algae with hard leaves

The better the cancer feeds, the faster it will molt and grow. It is necessary that the power is located at the bottom of the tank constantly. But if feeding occurs according to the clock, then the animal quickly becomes accustomed to such a regimen and timely approaches the feeding place.

Usually crayfish are unpretentious in food, they can even eat spoiled food. Be sure to include in the menu the following:

  1. Feed of plant origin. For example, it can be tender plants in an aquarium, spinach, fallen leaves, greens or fresh vegetables.
  2. Dry food. Insect larvae, fish flakes, gammarus or daphnia.
  3. Animal feed. Chunks of liver, beef, various meats, squid, frogs, snails, lean sea fish.
  4. Combined food and vegetable capsules for catfish.
  5. Live feed. Earthworms, bloodworm, tubule.

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All types of food must be combined with each other so that the Cuban’s diet is diverse and balanced.

The maintenance of blue Cuban cancer is easy even for a beginner aquarist. Breeding Cuban at home is simple. Sexual maturity occurs at 10 months.

It is not difficult to distinguish between a male and a female. Reproduction occurs all year round.

For this, a separate container is prepared in advance. For two crayfish enough 22 liters of water. Fluid temperature should be at least 26 degrees Celsius.

In a separate container, the soil is not needed, it is necessary to lay out several grottoes and shells. In the tank, strong aeration should occur and a quarter of the fluid should be replaced twice a week.

Blue crayfish do not have a specific breeding period, mating can occur throughout the year.

Crayfish settle down in in advance prepared aquarium. Their pairing takes a long time, it usually takes an hour and a half.

Next, the boy is deposited, and the girl 3 weeks carrying a huge number of eggs under the tail. Usually their number varies from 35 to 210. Eggs are first black, but then they become lighter and more colorless.

The diameter of one egg is 3 mm. After three weeks, small crustaceans are born within 24 hours.

They immediately look like mature individuals, but are small, about 3 or 4 mm. They are born with a transparent cover.

Approximately 7 days little kids hang on mom. After that, they are uncoupled and they can be transplanted into a separate aquarium.

Fluid capacity should be 60 liters per 50 kids. Or you can remove the female from the bailout. Every day, small individuals need to change a third of the water.

It should be clean and not include chlorine. Feeding shingles occurs by dry rations for fry, lower crustaceans, crushed tubule or bloodworms, gammarus or blue whiting fillet.

Kids of the blue crayfish look like an adult, only small sizes

If the water is high in nitrates, the Cuban will die quickly. Therefore, it is necessary to closely monitor this ratio.. The most common diseases are:

  1. Parasites. They are on the gills or shell of the cancer. Parasites of small size, only 3 or 4 mm are leeches of white and yellow color. To escape from the disease, cancer should be placed in a 1.5% salty bath.
  2. Hay plague. Detonator is a fungus. It is impossible to get rid of such a scourge.
  3. Burn disease. It is revealed in the form of black or brown specks on the legs and shell. The disease is derived by lotions from alder or fallen oak leaves.
  4. Porcelain disease. Infection occurs from the diseased individual. It is characterized by lesions of the limbs and abdominal muscles. From such a disease can not get rid of, often fatal.

To avoid disease in blue cancer, it is necessary to monitor the content of nitrates in the water.

There are many types of cancer that require certain conditions:

  • Californian or Florida cancer. The red fish is very popular, it is often kept by aquarists. Californian is known for its bright coloring and unpretentious care. At home in California, this species is common, considered invasive. Usually red cancer lives about 2 or 3 years. He has a good adaptation to different living conditions. Its body length ranges from 13 to 16 cm. Like other cancerous individuals, a Florida animal can escape from an aquarium, so the lid must always be tightly closed.

Californian red crab is one of the popular species among aquarists

  • Marble cancer. Its peculiarity is that all individuals are females that breed independently. The length of the body reaches 16 cm. The individual has an attractive blue color, so this species is popular among razvodchiki. In nature, an individual lives up to 5 years, but lives longer at home, usually reaching 20 cm in length. The homeland of the crustacean is Australia, and the aborigines of the marble crab are called “apples”. These are calm individuals, non-conflict, live in nature in a muddy pond with a small current and bulky vegetation. The aquarium is kept at a water temperature of 20 to 27 degrees Celsius. Marble cancer is able to tolerate a strong fluctuation in temperature, but if the temperature is below 22 degrees, then it stops growing. And at temperatures above 26 degrees die.

Another name for marble cancer is apple

  • Dwarf Louisiana cancer. It has a crimson-brown or gray shell color, has dark longitudinal stripes on the body. Pincers are smooth, small in size and elongated. Life expectancy is only 19 months, boys live longer than girls. This is a small animal that is 4 cm in length. Because of its small size, it is a very peaceful individual that can be kept together with other fish. Homeland is the United States, Louisiana, Alabama or Texas. Females live for up to a year, during which they lay eggs 2 times, and bear offspring for about 3 weeks. From 35 to 45 pieces of eggs are thrown at once.

The maintenance and breeding of blue Cuban crayfish can not only experienced, but also novice lovers. All types of cancers are beautiful in their own way.

Novice aquarists are attracted to the blue cancer of mobility and elementary care. Cuban stands out beautiful and unusual color.

With proper care, lives up to three years.

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