The maintenance and breeding of aquarium fish already bored many aquarists. The fish are replaced by the exotic inhabitants of the seas and oceans – aquarium crabs.
Most often, crabs in nature prefer salt water, but there are also freshwater crabs living in river ecosystems.
Crabs or in other words short-tailed crayfish is a detachment from the Crustacean subtype that are included in the class of Higher Cancers. The remains were found back in the Jurassic fossils. Now they almost did not change their appearance and still resemble their ancestors.
These arthropods are located on almost the entire globe.
Crabs are close relatives of crayfish. Their difference is in the external absence of the abdomen, which ends with the tail part.
They have an abdomen, but it has decreased too much and is located under the breast. The tail would interfere with the movement by land.
In these crustaceans, body size depends on the specific species and ranges from 4 to 35 cm. A distinguishing feature from other animals is the presence of strong claws, which are designed to hunt, protect, and cleanse the body. Another 4 pairs of limbs help arthropods move around.
Small, underdeveloped 2 limbs near the mouth opening help to absorb food.
They live in rivers, seas, oceans, rarely on land. They are able to swim in the water column, crawling along the bottom.
The color of the shell of most species of brown-green. But the color of the body of different species adapts to the environment. The inhabitants of the sandy bottom have a golden-beige color, lovers of hiding in the algae are light green.
Representatives from the coral reefs are variegated.
Arthropods are becoming more common aquarium pets. But they are not too friendly to other underwater inhabitants, even to members of their family.
Keep them better alone.
The life span of crabs ranges from 3 to 6 years.
For each species of aquarium crabs, certain features of keeping, feeding and breeding are preferred. Therefore, when buying, be sure to pay attention to what kind of crab you buy.
Consider the most common species of crabs.
The red mangrove species in nature lives in the waters of the South Asian part. This is one of the types of crabs that live near sandy shores or in sandy-backed creeks.
The name “mangrove” received for its favorite place of residence – thickets of mangrove forests.
The color of the shell of this species ranges from burgundy to dark brown. The limbs of the same color as the shell, excluding claws.
Pincers are painted in a rich red color, closer to the end brightens. The size of a small – in length reaches only a few centimeters.
One individual of the red mangrove will need a small aquaterrarium measuring 35 * 35 cm and a height of water of 10-15 cm. The land must be at least 20% of the volume of the aquaterrarium.
Prefers to live in salted water. To the hardness and acidity of water is not too sensitive.
When keeping several mangrove crabs between them there will be conflicts and skirmishes.
Place of residence of the pet must be closed with a lid. This is a necessary measure, because the red mangrove species is distinguished by its dexterity.
He will easily climb over stones and logs and jump out.
Does not reproduce outside the natural environment.
The Dutch species is found in Holland, the Caspian and Azov Seas. This species is well suited for inexperienced crustacean owners. They have no difficulty in maintaining.
Environmental requirements for molting them are not too high. Lifetime under optimal conditions is 2.5 – 3 years.
The Dutch species is small in size. An adult individual grows to a length of 3–4 cm.
The shell is painted in dark shades.
Dutch crab is a freshwater species, therefore it is contained in unsalted water in an aquarium. The view is not too aggressive. Because of this, are able to live together with other fish.
It is desirable that other inhabitants most of the time were in the upper and middle layers of water. This will help avoid conflicts.
With other representatives shows aggression and protects its territory.
Differs wrecking in relation to plants. These short-tailed crayfish love to dig in the roots and tear off the lower leaves.
Use artificial plants or plants with a strong root system.
Do not require special conditions for reproduction. Caviar incubation period is one month.
After that, the larvae hatch, which after a few days turn into small copies of their parents, a few millimeters in size.
Habitat in nature – backwaters of Thailand and a number of lying countries. This species is considered the smallest among invertebrates. An adult representative reaches a size of 0.5-1.3 cm.
Because of its size, it is called the spider crab, a micro spider. Lives in fresh water.
Life span of 1.5-2 years.
Dwarfs do not differ bright colors. Their body is gray or light greenish. On the body are small hairs or fluffs.
They are used to filter water, search for food particles at the bottom.
Keep a crab is not difficult. For dwarf species suitable capacity of 8-10 liters. Able to live with other fish.
But aggressive and predatory fish will hunt a small arthropod. In this case, it is better to organize a separate tank. They are active in the dark.
The rest of the time they are hiding in shelters and plants.
For breeding, raise the temperature to 28-30 degrees. After mating, the larvae hatch in a month.
Babies do not need special care.
The rainbow crab is the most popular pet among the crustaceans due to the bright multi-colored color and simple care. It has other names: patriot, indigo, ground, tricolor.
In the natural environment lives on the shores of the Pacific Ocean.
The rainbow-colored carapace is rich blue or pale purple. Lower body light beige. Limbs have a dark orange color.
From the outside, the claws are not painted or are painted slightly. The average size of adult representatives is 20 cm.
Rainbow representatives – capricious and demanding care. They will need a spacious aquaterrarium with a large part of the land. Water space requires a minimum amount.
In the natural environment in water, the rainbow species is found only during shedding and breeding, and the rest of life is carried out on land.
At home, does not multiply.
Vampire crab attracts aquarists with its exotic look. The shell, limbs and head are painted with a rich purple color. Against this background, orange eyes contrast.
The body size is 1.5–3 cm. In nature, they live in freshwater bodies and rivers of India, Asia, and on the islands of Java and Hawaii.
For the maintenance of several representatives suitable terrarium or aquaterrarium volume of 30-40 liters. In the natural environment, they prefer to eat the decaying lower part of sphagnum moss.
The houses feed on small insects and special food for crustaceans.
Good compatibility with other creatures, vampires do not show aggression and territoriality.
Poor tolerance acclimatization. Sometimes vampires die during molting.
This is due to the lack of vitamins and nutrients for the restructuring of the body.
In the natural environment lives in the south of Asia. Called the “red devil” because of the specific color of the body. Limbs, sides and muzzle black.
Against this background, saturated red claws, spots on the shell and the head stand out in contrast.
The appearance of this crustacean really creates a repulsive impression. But this is a peace-loving and non-aggressive look. Able to live with peaceful fish.
Body size 3-5 cm.
Aquaterrarium or paludarium is equipped with a small water part. The remaining part is discharged under the land. Plant her on it.
Air humidity is 90–95%.
The Malawian species got its name for the habitat where it was first found. They live in abundance in Lake Malawi, which is located in eastern Africa.
The main color of the shell and limbs is blue-blue. The lower part of the body is colored brown or burgundy.
The size of the shell is 10–12 cm, and the length of the claws is 5–7 cm.
Malawian species is aggressive and is able to fight in its fights to defend its territory and seize a new one. Therefore contained alone.
Able to live with Malawian fish, as in the natural environment.
This species is quite strong and is able to carry small stones and build slides from them. If the tank has no cover or net for protection, the crab is able to escape.
These crustaceans require a minimum amount of animal protein, because overfeeding provokes excessive aggressiveness.
Black sea ritropanopeeus or otherwise Dutch crab was first discovered in the coastal areas of Holland. Later it was discovered that it lives in the coastal parts of the Black Sea and Caspian seas and even in the river Don.
Ritropanopeeus does not have a large size, its body size is about 4 cm. The body color is brownish-brown with small specks to hide in silt and to be buried in the sand.
Lower body is much lighter.
Dutch crabs are recognized unpretentious to the environment and quickly adapting pets. They have a calm temperament, conflicts arise only during the breeding season.
For the Dutch, you need a roomy aquaterrarium. With lots of aquarium vegetation.
Multiply at home. The main factor for successful breeding – salt water, similar in composition to the sea.
Caviar will disappear in fresh or slightly salted water.
The Royal Leopard or Panther Crab is a species found in freshwater bodies of Indonesia. Leopard is named for its appearance.
The main body color is light and beige. The whole body, except the bottom, is covered with dark small spots.
It grows up to 12 cm.
The nature of the King Crab is not peaceful. In the presence of other creatures will selflessly defend their territory.
Leopard representatives do not need land like some other species. They live quietly in aquariums.
In an aquarium, plant enough edible plants for arthropods.
When keeping a crab in an aquarium, it is important to know the characteristics of their body, their daily routine, and their dietary preferences. Before purchasing an arthropod pet, you need to weigh the pros and cons, find out information about the maintenance and care of them.
A large number of species of crustaceans live in ponds with salt water. Therefore, in the aquaterrarium water must also be salted.
For this use sea salt. If it is not available, then mix table salt, soda and calcium chloride.
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